Questions on Algebra: Quadratic Equation answered by real tutors!

Tutors Answer Your Questions about Quadratic Equations (FREE)

Question 414512: Solve the following equation:
-(5x+7)-(7x-5)=7-(3x+1)
Click here to see answer by jim_thompson5910(35256)

Question 414512: Solve the following equation:
-(5x+7)-(7x-5)=7-(3x+1)
Click here to see answer by rfer(16322)

Question 414505: solve the following equation:
1/7(x-20)=1/5(x-28)
Click here to see answer by algebrahouse.com(1659)

Question 414574: what is the perimeter of a quadrilateral that has an area of 100 square inches
Click here to see answer by praseenakos@yahoo.com(507)

Question 413994: Find the LCD for the following then add as indicated:
13/42+11/56
Click here to see answer by Edwin McCravy(20054)

Question 414893: solve this equation by completing the square -4r^2+21r=r+13

Click here to see answer by stanbon(75887)

Question 414895: I am having trouble with a quadratic word problem. The word problem is as follows:
The sides of one square have length 3 m more than the sides of a second square. If the area of the larger square is subtracted from 4 times the area of the smaller square, the result is 36 m^2. What are the lengths of the sides of each square?
Click here to see answer by stanbon(75887)

Question 414929: Find an equation of the parabola which contains a minimum point at (2,-1) and ordered pair (-1,7)
Click here to see answer by Edwin McCravy(20054)

Question 414769: Which of the following is a quadratic equation? X^3 - 27 = 0 Or X^2 - 27=0 Or X- 27=0 Or 1/x - 27 = 0? Explain why please.
Click here to see answer by richard1234(7193)

Question 415015: Find the vertex, the line of symmetry, and the maximum or minimum value of f(x). Graph the function.
f(x)=-(x+3)^2-1
I have been having problems with these and can't seem to get it right. Can someone help please!
Click here to see answer by woolybear(13)

Question 415041: 5x+3= -4(1-x)
Solve x
Click here to see answer by algebrahouse.com(1659)

Question 415085: 2 consecutive even numbers whose product is 48
could u list the steps and answer?
Click here to see answer by mananth(16946)

Question 415084: (v)2+8v+16=10
could u list the steps and formula? answer?
Click here to see answer by mananth(16946)

Question 415103: What are the x-intercepts of f(x)=x^2-9x+6
Click here to see answer by robertb(5830)

Question 415129: I don't understand this problem.
The square of a number exceeds that number by twelve.Find the number(two answers).
Click here to see answer by mananth(16946)

Question 415129: I don't understand this problem.
The square of a number exceeds that number by twelve.Find the number(two answers).
Click here to see answer by sudhanshu_kmr(1152)

Question 415139: I'm having trouble with these two problems.
The width of a rectangle is two thirds of its length,and its area is 216 square meters. Find the dimensions.

The width and length of a rectangle are consecutive odd integers.If the length is increased by five feet,the area of the resulting rectangle is 60 square feet.
Find the dimensions and the area of the original rectangle.
Click here to see answer by ewatrrr(24785)

Question 415194: One number is six less than another. Their sum is twelve. Find the numbers. (Enter solutions from smallest to largest.)
Click here to see answer by ewatrrr(24785)

Question 415193: One number is four more than another. Their sum is eight. Find both numbers. (Enter solutions from smallest to largest.)
Click here to see answer by ewatrrr(24785)

Question 415195: One number is fifteen more than twice another. If their sum is decreased by nine, the result is eighteen. Find the numbers. (Enter solutions from smallest to largest.)
Click here to see answer by ewatrrr(24785)

Question 415191: Five times the difference of twice a number and nine is negative twenty-five. Find the number.
Click here to see answer by ewatrrr(24785)

Question 415190: Five times the sum of a number and seven is twenty. Find the number.
Click here to see answer by ewatrrr(24785)

Question 415188: The difference of fifteen and a number is negative six. Find the number.
Click here to see answer by ewatrrr(24785)

Question 415166: Solve the following for q:
A=qy
Click here to see answer by ewatrrr(24785)

Question 415168: Solve the following for a:
p=a+b+k
Click here to see answer by ewatrrr(24785)

Question 415169: Solve the following for v
h=3vt+13t^2
Click here to see answer by ewatrrr(24785)

Question 415170: Solve the following for b
b-3=-2(x+9)
Click here to see answer by ewatrrr(24785)

Question 415171: Solve the following formula for y
x/5-y/3=1
Click here to see answer by ewatrrr(24785)

Question 415163: Solve the following equation:
4y-2=8y+14
Click here to see answer by ewatrrr(24785)

Question 415196: Shelly is 5 years older than Michele. Four years ago the sum of their ages was 65. Find the age of each person now.
Shelly is(fill in the answer) years
Michele is (fill in the answer) years.
Four years ago Now
Shelly x + 1 x + 5
Michele x - 4 x
The chart could probably help
Click here to see answer by MathLover1(20849)

Question 415162: Simplify both sides as much as possible, and then solve:
18-13=1/3a+1/2a-5/12a
Click here to see answer by ewatrrr(24785)

Question 415187: The sum of a number and six is fourteen. Find the number.
Click here to see answer by Alan3354(69443)

Question 415352: so i was using the practice questions and the problem was
1xsquared+ -7x +10=0
now after putting it into the formula and doing some work i came to 7 +/- 89 (under the square root sign). how do i solve from there if 89 doesnt have a perfect square root?
Click here to see answer by ewatrrr(24785)

Question 415365: how do you find the information you need after using the formula -b/2*a ?

Click here to see answer by praseenakos@yahoo.com(507)

Question 415558: can you show me the steps of solving the quadratic equation but in the other form that's -(b)+-square root of b squared minus 4ac over 2a because i know how to solve it but i don't understand it.
Click here to see answer by Alan3354(69443)

Question 415706: I'm trying to solve this parabola and I'm kind of stumped
With my equation, which is ... (x+-24)(x+-0) =? and I was told to use the process that we call " foil " but I'm still a little lost.
Thanks :)
Click here to see answer by richard1234(7193)

Question 415869: The perimeter of a square is 64 centimeters. Find the length of one side.
s = centimeters
Fill in the blank
Click here to see answer by Alan3354(69443)

Question 415878: The length of a rectangle is 7 feet less than twice the width. The perimeter is 64 feet. Find the length and width.
L= ? feet
w= ? feet
Click here to see answer by ewatrrr(24785)

Question 415876: The length of a rectangle is 7 inches more than three times the width. The perimeter is 86 inches. Find the length and width.
L=... inches
w=... inches
Fill in the blank(...)
Click here to see answer by ewatrrr(24785)

Question 415873: The length of a rectangle is 5 inches more than the width. The perimeter is 30 inches. Find the length and width.
L =... inches
w= ... inches
Fill in the blank(...)
Click here to see answer by ewatrrr(24785)

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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