Questions on Algebra: Quadratic Equation answered by real tutors!

Tutors Answer Your Questions about Quadratic Equations (FREE)

Question 2375: a chain store manager has been told by the main office that daily profit P is related to the number of clerks working that day. x according to equation P=-25x^2+300x. What number of clerks will maximize the profit and what is the maximum possible profit?
Click here to see answer by longjonsilver(2297)

Question 2378: i want to know how to get the values of a quadratic graphs
Click here to see answer by longjonsilver(2297)

Question 2386: Consider the general quadratic function f(x)=a(x-h)^2+k, where a, h, and k are real constants and (a) does not equal 0. Where does the graph of f(x) cross the y-axis? And if the vertex of the graph of f(x) is located at the point (2,3), how many x-intercepts are possible for the graph?
Click here to see answer by longjonsilver(2297)

Question 2352: when you are finding the surface area of a rectangular prism and you hav to find the polynomial in simplified form how do you get the answer? Because on the rectangular prism- the length and width is x+5 and the height is 3x-1 and i got 66x+-10 +12x squared and i think i did something wrong but i cant find out where? Pllleaase help asap, thankss!
Click here to see answer by longjonsilver(2297)

Question 2432: Find three consecutive whole numbers such that the product of the first and the second is 23 more than the third.
Click here to see answer by usyim88hk(158)

Question 2438: y=x(2)-5 find the vertex tell if it opens up or down left or right and focus and directrix
Click here to see answer by khwang(438)

Question 2420: what is the answer to the problem 0=x^2-12x+16
Click here to see answer by jojo2009002ojoj(2)

Question 2412: I need 3 simple examples of non factorable quadratic equations. (so you have to use the quadratic formula)
Click here to see answer by longjonsilver(2297)

Question 2445: A poster has dimensions that are 25 cm by 30 cm is surrounded by a border of uniform width. If the area of the border is 174 cm^2, find the outside perimeter of the border.
Click here to see answer by longjonsilver(2297)

Question 2444: One dimension of a square is increased by 10 meters and the other dimension is increased by 5 meters. The area of the new rectangle is three times that of the original square. How long was one side of the square?
Click here to see answer by longjonsilver(2297)

Question 2467: what is the quadratic equation of the co-orinates: Turning point= (7,3) and x-intercepts= (6,8)
Click here to see answer by khwang(438)

Question 2443: The lenth of a rectangle is 1 more than five times the width. If the area is 130 square cm, find the dimensions of the rectangle.
Click here to see answer by gsmani_iyer(201)

Question 2543: How do you factor one side of the equation completely and find the x-intercepts and y-intercepts for y= -8x2 + x ?
Click here to see answer by kiru_khandelwal(79)

Question 2539: 8x^2-x-7
THANK YOU!!!
Click here to see answer by kiru_khandelwal(79)

Question 2602: i am a sophmore in highschool taking PreCal and i need help. I have to write a 50 word , word problem and explain how to solve it. I have to do this for about 11 different PreCal subcategories and Im almost completely clueless on quadratic equations. Can somebody please help me?
Click here to see answer by longjonsilver(2297)

Question 2598: solve the questions give below by factorization
(1)3x2+x=1 (2)4x2+9=12x (3)5x(x+2)=4(3x=1) (4)2x+7=x2 (5)x2-3x=3x=7 (6)3(4x-1)=x2
Click here to see answer by longjonsilver(2297)

Question 2620: find two numbers whose sum is 50and whose product is a maximum
Click here to see answer by khwang(438)

Question 2649: is v(v-3) = v^2 + 6 a quadratic equation and if so what is the solution?
Click here to see answer by kiru_khandelwal(79)

Question 2608: A toy store sells two sizes of circular dartboards. The larger of the two has a radius that is 3 inches greater than that of the other. The radius of the smaller darboard is t inches. Find a polynomial that represents the difference in area between the two dartboards.
Click here to see answer by kiru_khandelwal(79)

Question 2678: how do you find the discriminant of the quadratic equation -3x(multiplied by the exponent 2) + 2x-5=0?
Click here to see answer by longjonsilver(2297)

Question 2669: Solve equation below using the quadratic formula.
1. x2+4x+3=0
Im hoping you can help me and you know the fomula
Thank You,
Sarah

Click here to see answer by longjonsilver(2297)

Question 2687: I need help on the quadratic equation: 2x(to the 2square)-7x+5=0? How do you solve it?
Click here to see answer by kiru_khandelwal(79)

Question 2706: I cant seem to figure out how to factor or fit this into the quadratic equation *2xsquared-2* does the fact that there is NO "B" mean that the "B" is zero.
Click here to see answer by longjonsilver(2297)

Question 2756: What is r when the problem is 10rSQUARED-96r-40. Can you please show all your steps so I can see how you did it?
Click here to see answer by gsmani_iyer(201)

Question 2763: can you please tell me a real life example of when a parabola is used? or please give me some websites that have this information..im having trouble finding any sources. thank you
Click here to see answer by longjonsilver(2297)

Question 2820: What is the axis of symmetry of x^2+9x+4?
Click here to see answer by kiru_khandelwal(79)

Question 2805: I am a college student returning to classes after a 3 year break. I sure have forgotten a ton in the past three years! Here is my latest problem: How do I solve for X in this equation? Please show me the steps so I can repeat this type of problem. I feel so dunce! Thanks!
100X-4000/100X=.3
Click here to see answer by kiru_khandelwal(79)

Question 2823: When are there two solutions in quadratic equations???
Click here to see answer by AnlytcPhil(1806)

Question 2823: When are there two solutions in quadratic equations???
Click here to see answer by WannabeCAgirl83(35)

Question 2818: how do you graph x^2-x-7 as a parabola?
Click here to see answer by AnlytcPhil(1806)

Question 2787: 6x2+23x+7
Click here to see answer by gsmani_iyer(201)

Question 2855: Solve the quadratic equation by the formula:
x^2-8x+14=0

Click here to see answer by xcentaur(357)

Question 2714: need help with quadratic problem
4x^2 + 27x -7
Click here to see answer by xcentaur(357)

Question 2679: satsriakaaal
please show me how to solve the following graph quadratic equation:
x^2+3x=18
Click here to see answer by xcentaur(357)

Question 2677: 4x^2 + 3x -2=0
Click here to see answer by xcentaur(357)

Question 2666: 2X^2-6X+1=3
Click here to see answer by xcentaur(357)

Question 2688: Use the equation y=x(squared)-3x-10
-compared to the graph of y=-3x(squared), does this graph open in the same direction or opposite?
-find x-intercepts for the graph
-----------------------------------------------------
could you please answer as soon as possible and please explain how you got your answer and why it is correct...thank you so much!
Click here to see answer by khwang(438)

Question 2913: How do you complete the square for a quadratic function

Click here to see answer by creepone(1)

Question 2930: can you please solve this for me
x to the second power+6x+5=0
Click here to see answer by gsmani_iyer(201)

Question 2916: Find solution set to: X4(power) = -3
Click here to see answer by khwang(438)

Question 2995: Why are y=x^2 equations called quadratic equations? Since the prefix "quad" means four.
Click here to see answer by longjonsilver(2297)

Question 2998: what is the slope and y intercept of y=-4x+1
Click here to see answer by indiangangsta(5)

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