Questions on Algebra: Quadratic Equation answered by real tutors!

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Question 857383: How do I solve -3xsquared+2x+1=0
Click here to see answer by Fombitz(32388)

Question 857562: solve fox x
(x-a)^2 = (x-b)^2
Click here to see answer by josgarithmetic(39616)

Question 857614: the width of a rectangle is 2m less than the length. The area is 48 m2. find the dimensions of the rectangle.
Click here to see answer by JulietG(1812)

Question 857661: Solve using the quadratic equation
Click here to see answer by richwmiller(17219)

Question 857666: all four sides measure 5 cm. two of the opposite angles are 130 degreese

Click here to see answer by Fombitz(32388)

Question 857702: two rectangular plots are of equal area. the length of the first plot is one and a half times its width. the length of the second plot is 7 meter less than three times its width.
a) denoting the width of the first plot by x meters and the the width of the second plot by y meters, derive a relation between x and y
b)if y=x+1 calculate the value of x only
Click here to see answer by mananth(16946)

Question 857815: If 112-2x is 68 then what is x?
Click here to see answer by JulietG(1812)

Question 857904: Will you please describe the transformations performed on f(x)=|x| to make it the following: f(x)=4|x+1|-6 and f(x)=1/4|x|+5
Thank you so very much!
Click here to see answer by stanbon(75887)

Question 857951: 1 kilometer equals
a. 10 meters
b. 100 meters
c. 10,000 centimeters
d. 1,000,000 millimeters
Click here to see answer by KMST(5328)

Question 857970: how many values of c in the equation x^2-5x+c result in rational roots which are intergers
Click here to see answer by josgarithmetic(39616)

Question 857949: you invested $270 which gets 15% compounded annually for 3 years. how much will you have in 3 years?
Click here to see answer by jim_thompson5910(35256)

Question 857952: 228 people have registered for a sightseeing tour of the grand canyon. if a tour director can take 35 people on each tour, how many tour directors will be needed to accommodate everyone?
Click here to see answer by JulietG(1812)

Question 857368: Find three consecutive integers such that two times the sum of all three is 3 times the product of the larger two.
Click here to see answer by ben720(159)

Question 858178: the sum of the squares of two consecutive positive even integers is 340. Find the integers.

Click here to see answer by harpazo(655)

Question 858210: Find 3 odd consecutive intergers such that the product of the first and third minus the middle intergers is 338.
Click here to see answer by ramkikk66(644)

Question 858288: what is the working for x^2-4x+4 ....using the quadratic formula?
Click here to see answer by mananth(16946)

Question 858471: if the quadratic formula is used to find the roots of the equation x2 - 6x - 19 =0 ((the 2 is the second power))
the correct roots are?
Click here to see answer by jim_thompson5910(35256)

Question 858541: If a certain number is added to both the numerator and denominator of the fraction 8/7, the result is 4/3 . Find the number.
Click here to see answer by josgarithmetic(39616)

Question 857947: joseph walked to james house. it is 15 miles from joseph house to james house. it took joseph 3 hours and 45 minutes to get there. how fast did joseph go

Click here to see answer by tommyt3rd(5050)

Question 858736: Match each quadratic equation with the best way to solve it.
1. 5x^2 + 12x - 3 = 0 - solve by quadratic formula
2. x^2 - 4x = 8 - solve by factoring
3. 4x^2 - 25 = 0 - solve by square root method
4. x^2 - 5x + 6 = 0 - solve by completing the square
Click here to see answer by josgarithmetic(39616)

Question 858913: Write a quadratic equation having the given numbers as solution.
-p/9, only solution
Click here to see answer by richwmiller(17219)

Question 858993: A garden measuring 12 meters by 16 meters is to have a pedestrain pathway installed all around it, increasing the total area to 285 meters. What will be the width of the pathway?

Click here to see answer by mananth(16946)

Question 859033: Find the value of X and Y from the given equation : sqrt(X)+Y=7 & sqrt(Y)+X=11
Click here to see answer by Fombitz(32388)

Question 859113: Im a parent trying to help my daughter...basically the problem is a kid drops a rock from a bridge, h represents height and t represents time in seconds, how long does it take for the rock to hit the water from the bridge with the formula h= -16t�-16t+60
Click here to see answer by josgarithmetic(39616)

Question 859159: 5x+4=2x+8
Click here to see answer by ewatrrr(24785)

Question 859158: 5x+4=2x+8
Click here to see answer by ewatrrr(24785)

Question 859400: Hello,
The question is "form a quadratic equation and solve. Answer to the nearest tenth. x+1/x=3, x≠0
Click here to see answer by josgarithmetic(39616)

Question 859522: How do you factor 5x^2+4x-96=0?
Click here to see answer by Fombitz(32388)

Question 859522: How do you factor 5x^2+4x-96=0?
Click here to see answer by rothauserc(4718)

Question 859537: How do you find the quadratic function displayed in a graph
Click here to see answer by ewatrrr(24785)

Question 859561: Determine the quadradic function, whose graph is given?
vertex (1,-5) and the y intercept is -4

Click here to see answer by ewatrrr(24785)

Question 859798: I have officially given up on trying to figure out how to do these and I'm one step away from just giving up and punching everyone. How do I put these into a calculator/app to not have to do them but not fail out of high school.
Click here to see answer by lenny460(1073)

Question 859857: x2 - 12x + 32 = 0, I cant figure it out. please help me
Click here to see answer by ewatrrr(24785)

Question 859857: x2 - 12x + 32 = 0, I cant figure it out. please help me
Click here to see answer by edjones(8007)

Question 859877: Find the axis of symmetry and vertex for the following quadratic.
y=6x^2+18x+5
Thanks show all work please, thank you.

Click here to see answer by ewatrrr(24785)

Question 860139: A group of students is on sightseeing tour. The total fare is $120 and this is to be equally shared among students.If two more students join the tor, each pay $2 less. what is original number of students in group

Click here to see answer by ewatrrr(24785)

Question 860163: How do you solve these four problems im really lost
3V^2+9V-54=0
6X^2-2x-4=0
2X^2-7x-12=0
11K^2+8k+9=0
Click here to see answer by Alan3354(69443)

Question 860158: the width of a rectangular parking lot is 57 ft less than its length. determine the dimensions of the parking lot if it measures 250 ft diagonally.
Click here to see answer by ewatrrr(24785)

Question 860213: AN Astronaut standing on the surface of the moon throws a rock into the air with and initial velocity of 27 feet per second. the astronaut hand is 6 feet above the surface of the moo. The height of the rock is given by h= -2.7f2+27t+6.
How many seconds was the rock in the air?
Click here to see answer by ankor@dixie-net.com(22740)

Question 860328: Have reason to believe an error somewhere in my following steps...
Original problem: 1/x + 2/(x+2) = 17/35
Using LCD to clear fractions, I get:
35x + 70 + 70x = 17x^2 + 34
Rewriting to standard quadratic form:
17x^2 -105x -36 = 0
Factoring by grouping I get:
17x^2 -18x +34x -36
(17x^2 +34x) +(-18x -36)
17x(x+2) -18(x+2)
(17x-18)(x+2)= 0
However, when I FOIL last expression above, I get:
17x^2 +16x -36 ???
Shouldn't FOIL result in expression I had above for standard quadratic form -- 17x^2 -105x -36 =0 ?
Thanks much

Click here to see answer by mananth(16946)

Question 860322: If a 25 in. by 32 in. window has a wooden frame 2 inches wide surrounding it, what is the total area of the window and frame?

Click here to see answer by josgarithmetic(39616)

Question 860340: What is the value of m?
m - (15 - 4 - 2) = 2
A

Click here to see answer by checkley79(3341)

Question 860379: Determine the nature of the equation: 3x^2-4x-5=0
Click here to see answer by ewatrrr(24785)

Question 860339: Solve for x.
(x + 18) - 27 = 6

Click here to see answer by 1335(25)

Question 860337: subtract
(8 - 12x) - (14x - 4)

Click here to see answer by 1335(25)

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, 17551..17595, 17596..17640, 17641..17685, 17686..17730, 17731..17775, 17776..17820, 17821..17865, 17866..17910, 17911..17955, 17956..18000, 18001..18045, 18046..18090, 18091..18135, 18136..18180, 18181..18225, 18226..18270, 18271..18315, 18316..18360, 18361..18405, 18406..18450, 18451..18495, 18496..18540, 18541..18585, 18586..18630, 18631..18675, 18676..18720, 18721..18765, 18766..18810, 18811..18855, 18856..18900, 18901..18945, 18946..18990, 18991..19035, 19036..19080, 19081..19125, 19126..19170, 19171..19215, 19216..19260, 19261..19305, 19306..19350, 19351..19395, 19396..19440, 19441..19485, 19486..19530, 19531..19575, 19576..19620, 19621..19665, 19666..19710, 19711..19755, 19756..19800, 19801..19845, 19846..19890, 19891..19935, 19936..19980, 19981..20025, 20026..20070, 20071..20115, 20116..20160, 20161..20205, 20206..20250, 20251..20295, 20296..20340, 20341..20385, 20386..20430, 20431..20475, 20476..20520, 20521..20565, 20566..20610, 20611..20655, 20656..20700, 20701..20745, 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