Questions on Algebra: Quadratic Equation answered by real tutors!

Tutors Answer Your Questions about Quadratic Equations (FREE)

Question 235727: What does x equal in the quadratic equation
please and thank you.
Click here to see answer by Jeff Gordon(65)

Question 235727: What does x equal in the quadratic equation
please and thank you.
Click here to see answer by josmiceli(19441)

Question 235510:
m+2 + m + 1 = 180
Click here to see answer by Jeff Gordon(65)

Question 235507:
4+3x+2+ 2x+ 3+4 = 180
Click here to see answer by Jeff Gordon(65)

Question 235506:
2x+2+ x - 1 = 180
Click here to see answer by Jeff Gordon(65)

Question 235836: I am having a tough time with these problems on this one I must use the discriminate to determine the number of solutions of the quadratic equation and whether the solutions are real or complex. It is not necessary to find the roots just determine the number of types of solutions.
m^2 + m + 1 = 0
Click here to see answer by Theo(13342)

Question 235839: Another story problem I am having trouble with
A photo is 3 inches longer than it is wide. a 2-inch border is placed around the photo making the total area of the photo and border 108in^2. What are the dimensions of the photo
Click here to see answer by ankor@dixie-net.com(22740)

Question 235838: I am having trouble with the story problems

Three consectutive even integers are such that the square of the third is 76 more than the square of the second, Find the three integers.
Click here to see answer by checkley77(12844)

Question 235837: I have a tough time with word problems.
A rectangular parking lot is 50ft longer than it is wide. Determine the dimensions of the parking lot if it measures 250 ft diagonally
Click here to see answer by checkley77(12844)

Question 235833: I am having a tough time with these problems on this one I must use the discriminate to determine the number of solutions of the quadratic equation and whether the solutions are real or complex. It is not necessary to find the roots just determine the number of types of solutions.
2x^2+x-1=0
Click here to see answer by checkley77(12844)

Question 235873:
27 + ( 3 x 6 ) / 2
I have no idea what the forward slash is standing for is it division?
Click here to see answer by Alan3354(69443)

Question 235891: For a quadratic function, how do you find the x-intercept(s)
Click here to see answer by nyc_function(2741)

Question 235834: I am having a tough time with these problems on this one I must use the discriminate to determine the number of solutions of the quadratic equation and whether the solutions are real or complex. It is not necessary to find the roots just determine the number of types of solutions.
4/3x^2 - 2x + 3/4 =0
Click here to see answer by rfer(16322)

Question 235961: I need to find the solution for h. the problem is 2h^2 - h - 3 = 0
Click here to see answer by stanbon(75887)

Question 235987: How would you write the translation of 16 increased by b
Click here to see answer by rfer(16322)

Question 236055: The Everton college store paid $1903 for an order of 49 calculators.The store paid $11 for each scientific calculaor. The others,all graphing calculators,cost the store $55 each. How many types of each calculator was ordered?
Click here to see answer by stanbon(75887)

Question 236057: factor
Click here to see answer by checkley77(12844)

Question 236052: A student makes a $10.25 purchase at the bookstore with a $20 bill. The store has no bills and gives the change in quarters and fifty-cent pieces. there are 30 coins in all. how many of each kind are there?
Click here to see answer by checkley77(12844)

Question 236062: solve showing and explaining all steps using quadractic formula,
x^2+2x-8=0
Click here to see answer by jim_thompson5910(35256)

Question 236090: I must use the discriminant to determine the number of solutions of the quadratic equation and whether the solutions are real or complex. I am having trouble understanding how to find the discriminant and then find the solutions.
I do not need to find the roots.
3z^2 + z - 1 = 0
Click here to see answer by philline_palana(20)

Question 236111: what are the two binomial factors of 6s^2+40s-64
Click here to see answer by stanbon(75887)

Question 236058: If the two solutions of a quadratic equation =-4 and 3 and c=4 then how do I solve this problem and write it in standard form?
Click here to see answer by Theo(13342)

Question 236187: x^-x=1 what is the solution set{ }?
quadratic formula.
Click here to see answer by jim_thompson5910(35256)

Question 236208: 4y^2-7y-15=0
Click here to see answer by jim_thompson5910(35256)

Question 236220: use quadractic equation to find the x intercept if any. then evaluate the function for several values of x. f(x)=-x^2-2x-1
Click here to see answer by checkley77(12844)

Question 236217: find the vertex, the line of symmetry and the maximum or minimum value of f(x). Graph the function f(x)=1/2(x+6)^2+3
Click here to see answer by stanbon(75887)

Question 236217: find the vertex, the line of symmetry and the maximum or minimum value of f(x). Graph the function f(x)=1/2(x+6)^2+3
Click here to see answer by Edwin McCravy(20054)

Question 236327: solve the quadratic equation by using the square root property.
4(a-5)^2=1
Click here to see answer by Theo(13342)

Question 236463: Please help me solve these:
5 x squared + 9x - 1 = 0
4 x sq + 12x + 7 = 0
Click here to see answer by jim_thompson5910(35256)

Question 236462: Find an equation of the line containing the given pair of points. Express your answer in the form x=a, y=b, or y=mx+b, (-6,-6) and (5,5) what is an equation of the line? I'm having a hard time understanding it, can you please help me slove and understand the equation??
Thank you! :))
Click here to see answer by jim_thompson5910(35256)

Question 236448: please help me solve this equation

Click here to see answer by jim_thompson5910(35256)

Question 236478: How do you turn this equation to standard form and what are the steps to get it to the answer?
Click here to see answer by jim_thompson5910(35256)

Question 236480: Please help me with this problem:
The sum of the roots of the equation x squared -20x + 9 = 0 is______________________
The product of its roots is____________________________
Thank you very much. Carrie
Click here to see answer by user_dude2008(1862)

Question 236442: Will someone please help me solve this problem:
The difference between two numbers is 3.
Their product is 180.
What are the numbers?
Thank you.
Click here to see answer by JaspersHeart(2)

Question 236529: I am using this sight to figure out quadratic equations, but I am not sure what a certain symbol is that is being used. Here is the equation:
x= [-12 +- sqrt (144.4-4* -0.2*11)]/(-0.4)
x= [-12 +- sqrt (152.8)]/(-0.4)
My question is what does the star stand for to make it come out to 152.8?
Click here to see answer by checkley77(12844)

Question 236647: Solve: x^2 - x + 49 = 0
since b^2-4ac is negative, this has imaginary roots. I would like to know if there is a better/easier way to solve this and such quadratics..many thanks
Click here to see answer by jim_thompson5910(35256)

Question 236762: Hello,
I have had some difficulty with this problem and would very much appreciate some help with it. I am sorry, but, as I do not know how to make an exponent on my keyboard, the exponents will be signified by asterisks. The number of asterisks following a number will signify the value of the exponent.
Thank you,
x***-6x**+8x-48
Click here to see answer by scott8148(6628)

Question 236763: Hello,
I have had some difficulty with this problem and would very much appreciate some help with it. I am sorry, but, as I do not know how to make an exponent on my keyboard, the exponents will be signified by asterisks. The number of asterisks following a number will signify the value of the exponent.
Thank you,
x***-6x**+8x-48
Click here to see answer by scott8148(6628)

Question 236764: Hello,
I have had some difficulty with this problem and would very much appreciate some help with it. I am sorry, but, as I do not know how to make an exponent on my keyboard, the exponents will be signified by asterisks. The number of asterisks following a number will signify the value of the exponent.
Thank you,
Factor:
x***-6x**+8x-48
Click here to see answer by scott8148(6628)

Question 236775: Hello, I have looked at this prblem for almost two hours and I can't figure how to form the quadratic! Problem:
You can see 30 widgets at $500 per year. Furthermore, you find that for each $25 decrease in price you can sell 3 more wigdets. At what price should you sell the widgets to maximize gross income and what will that price be.
I did the long way by sub. in 25 increments and adding 3 to amount sold I came up with Gross income max = $16,875 if you sell for $375 ea. How do I work the equation to get in quadratic form from the beginning?
Thanks - Kristen
Click here to see answer by scott8148(6628)

Question 236845: Please help me solve this problem:
Find k to make the trinomial a perfect square:
r square + 10r + k
Thank you, Carrie
Click here to see answer by jim_thompson5910(35256)

Question 236907: Solve using quadratic equations:
a) x� + 3x = 10
b) 4 x� + 12x = 40
c) 4 x� + 12x + 9 = 40 + 9
d) 4 x� + 12x + 9 = 49

Click here to see answer by nyc_function(2741)

Older solutions: 1..45, 46..90, 91..135, 136..180, 181..225, 226..270, 271..315, 316..360, 361..405, 406..450, 451..495, 496..540, 541..585, 586..630, 631..675, 676..720, 721..765, 766..810, 811..855, 856..900, 901..945, 946..990, 991..1035, 1036..1080, 1081..1125, 1126..1170, 1171..1215, 1216..1260, 1261..1305, 1306..1350, 1351..1395, 1396..1440, 1441..1485, 1486..1530, 1531..1575, 1576..1620, 1621..1665, 1666..1710, 1711..1755, 1756..1800, 1801..1845, 1846..1890, 1891..1935, 1936..1980, 1981..2025, 2026..2070, 2071..2115, 2116..2160, 2161..2205, 2206..2250, 2251..2295, 2296..2340, 2341..2385, 2386..2430, 2431..2475, 2476..2520, 2521..2565, 2566..2610, 2611..2655, 2656..2700, 2701..2745, 2746..2790, 2791..2835, 2836..2880, 2881..2925, 2926..2970, 2971..3015, 3016..3060, 3061..3105, 3106..3150, 3151..3195, 3196..3240, 3241..3285, 3286..3330, 3331..3375, 3376..3420, 3421..3465, 3466..3510, 3511..3555, 3556..3600, 3601..3645, 3646..3690, 3691..3735, 3736..3780, 3781..3825, 3826..3870, 3871..3915, 3916..3960, 3961..4005, 4006..4050, 4051..4095, 4096..4140, 4141..4185, 4186..4230, 4231..4275, 4276..4320, 4321..4365, 4366..4410, 4411..4455, 4456..4500, 4501..4545, 4546..4590, 4591..4635, 4636..4680, 4681..4725, 4726..4770, 4771..4815, 4816..4860, 4861..4905, 4906..4950, 4951..4995, 4996..5040, 5041..5085, 5086..5130, 5131..5175, 5176..5220, 5221..5265, 5266..5310, 5311..5355, 5356..5400, 5401..5445, 5446..5490, 5491..5535, 5536..5580, 5581..5625, 5626..5670, 5671..5715, 5716..5760, 5761..5805, 5806..5850, 5851..5895, 5896..5940, 5941..5985, 5986..6030, 6031..6075, 6076..6120, 6121..6165, 6166..6210, 6211..6255, 6256..6300, 6301..6345, 6346..6390, 6391..6435, 6436..6480, 6481..6525, 6526..6570, 6571..6615, 6616..6660, 6661..6705, 6706..6750, 6751..6795, 6796..6840, 6841..6885, 6886..6930, 6931..6975, 6976..7020, 7021..7065, 7066..7110, 7111..7155, 7156..7200, 7201..7245, 7246..7290, 7291..7335, 7336..7380, 7381..7425, 7426..7470, 7471..7515, 7516..7560, 7561..7605, 7606..7650, 7651..7695, 7696..7740, 7741..7785, 7786..7830, 7831..7875, 7876..7920, 7921..7965, 7966..8010, 8011..8055, 8056..8100, 8101..8145, 8146..8190, 8191..8235, 8236..8280, 8281..8325, 8326..8370, 8371..8415, 8416..8460, 8461..8505, 8506..8550, 8551..8595, 8596..8640, 8641..8685, 8686..8730, 8731..8775, 8776..8820, 8821..8865, 8866..8910, 8911..8955, 8956..9000, 9001..9045, 9046..9090, 9091..9135, 9136..9180, 9181..9225, 9226..9270, 9271..9315, 9316..9360, 9361..9405, 9406..9450, 9451..9495, 9496..9540, 9541..9585, 9586..9630, 9631..9675, 9676..9720, 9721..9765, 9766..9810, 9811..9855, 9856..9900, 9901..9945, 9946..9990, 9991..10035, 10036..10080, 10081..10125, 10126..10170, 10171..10215, 10216..10260, 10261..10305, 10306..10350, 10351..10395, 10396..10440, 10441..10485, 10486..10530, 10531..10575, 10576..10620, 10621..10665, 10666..10710, 10711..10755, 10756..10800, 10801..10845, 10846..10890, 10891..10935, 10936..10980, 10981..11025, 11026..11070, 11071..11115, 11116..11160, 11161..11205, 11206..11250, 11251..11295, 11296..11340, 11341..11385, 11386..11430, 11431..11475, 11476..11520, 11521..11565, 11566..11610, 11611..11655, 11656..11700, 11701..11745, 11746..11790, 11791..11835, 11836..11880, 11881..11925, 11926..11970, 11971..12015, 12016..12060, 12061..12105, 12106..12150, 12151..12195, 12196..12240, 12241..12285, 12286..12330, 12331..12375, 12376..12420, 12421..12465, 12466..12510, 12511..12555, 12556..12600, 12601..12645, 12646..12690, 12691..12735, 12736..12780, 12781..12825, 12826..12870, 12871..12915, 12916..12960, 12961..13005, 13006..13050, 13051..13095, 13096..13140, 13141..13185, 13186..13230, 13231..13275, 13276..13320, 13321..13365, 13366..13410, 13411..13455, 13456..13500, 13501..13545, 13546..13590, 13591..13635, 13636..13680, 13681..13725, 13726..13770, 13771..13815, 13816..13860, 13861..13905, 13906..13950, 13951..13995, 13996..14040, 14041..14085, 14086..14130, 14131..14175, 14176..14220, 14221..14265, 14266..14310, 14311..14355, 14356..14400, 14401..14445, 14446..14490, 14491..14535, 14536..14580, 14581..14625, 14626..14670, 14671..14715, 14716..14760, 14761..14805, 14806..14850, 14851..14895, 14896..14940, 14941..14985, 14986..15030, 15031..15075, 15076..15120, 15121..15165, 15166..15210, 15211..15255, 15256..15300, 15301..15345, 15346..15390, 15391..15435, 15436..15480, 15481..15525, 15526..15570, 15571..15615, 15616..15660, 15661..15705, 15706..15750, 15751..15795, 15796..15840, 15841..15885, 15886..15930, 15931..15975, 15976..16020, 16021..16065, 16066..16110, 16111..16155, 16156..16200, 16201..16245, 16246..16290, 16291..16335, 16336..16380, 16381..16425, 16426..16470, 16471..16515, 16516..16560, 16561..16605, 16606..16650, 16651..16695, 16696..16740, 16741..16785, 16786..16830, 16831..16875, 16876..16920, 16921..16965, 16966..17010, 17011..17055, 17056..17100, 17101..17145, 17146..17190, 17191..17235, 17236..17280, 17281..17325, 17326..17370, 17371..17415, 17416..17460, 17461..17505, 17506..17550, 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20746..20790, 20791..20835, 20836..20880, 20881..20925, 20926..20970, 20971..21015, 21016..21060, 21061..21105, 21106..21150, 21151..21195, 21196..21240, 21241..21285, 21286..21330, 21331..21375, 21376..21420, 21421..21465, 21466..21510, 21511..21555, 21556..21600, 21601..21645, 21646..21690, 21691..21735, 21736..21780, 21781..21825, 21826..21870, 21871..21915, 21916..21960, 21961..22005, 22006..22050, 22051..22095, 22096..22140, 22141..22185, 22186..22230, 22231..22275, 22276..22320, 22321..22365, 22366..22410, 22411..22455, 22456..22500, 22501..22545, 22546..22590, 22591..22635, 22636..22680, 22681..22725, 22726..22770, 22771..22815, 22816..22860, 22861..22905, 22906..22950, 22951..22995, 22996..23040, 23041..23085, 23086..23130, 23131..23175, 23176..23220, 23221..23265, 23266..23310, 23311..23355, 23356..23400, 23401..23445, 23446..23490, 23491..23535, 23536..23580, 23581..23625, 23626..23670, 23671..23715, 23716..23760, 23761..23805, 23806..23850, 23851..23895, 23896..23940, 23941..23985, 23986..24030, 24031..24075, 24076..24120, 24121..24165, 24166..24210, 24211..24255, 24256..24300, 24301..24345, 24346..24390, 24391..24435, 24436..24480, 24481..24525, 24526..24570, 24571..24615, 24616..24660, 24661..24705, 24706..24750, 24751..24795, 24796..24840, 24841..24885, 24886..24930, 24931..24975, 24976..25020, 25021..25065, 25066..25110, 25111..25155, 25156..25200, 25201..25245, 25246..25290, 25291..25335, 25336..25380, 25381..25425, 25426..25470, 25471..25515, 25516..25560, 25561..25605, 25606..25650, 25651..25695, 25696..25740, 25741..25785, 25786..25830, 25831..25875, 25876..25920, 25921..25965, 25966..26010, 26011..26055, 26056..26100, 26101..26145, 26146..26190, 26191..26235, 26236..26280, 26281..26325, 26326..26370, 26371..26415, 26416..26460, 26461..26505, 26506..26550, 26551..26595, 26596..26640, 26641..26685, 26686..26730, 26731..26775, 26776..26820, 26821..26865, 26866..26910, 26911..26955, 26956..27000, 27001..27045, 27046..27090, 27091..27135, 27136..27180, 27181..27225, 27226..27270, 27271..27315, 27316..27360, 27361..27405, 27406..27450, 27451..27495, 27496..27540, 27541..27585, 27586..27630, 27631..27675, 27676..27720, 27721..27765, 27766..27810, 27811..27855, 27856..27900, 27901..27945, 27946..27990, 27991..28035, 28036..28080, 28081..28125, 28126..28170, 28171..28215, 28216..28260, 28261..28305, 28306..28350, 28351..28395, 28396..28440, 28441..28485, 28486..28530, 28531..28575, 28576..28620, 28621..28665, 28666..28710, 28711..28755, 28756..28800, 28801..28845, 28846..28890, 28891..28935, 28936..28980, 28981..29025, 29026..29070, 29071..29115, 29116..29160, 29161..29205, 29206..29250, 29251..29295, 29296..29340, 29341..29385, 29386..29430, 29431..29475, 29476..29520, 29521..29565, 29566..29610, 29611..29655, 29656..29700, 29701..29745, 29746..29790, 29791..29835, 29836..29880, 29881..29925, 29926..29970, 29971..30015, 30016..30060, 30061..30105, 30106..30150, 30151..30195, 30196..30240