Questions on Algebra: Quadratic Equation answered by real tutors!

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Question 1066958: If the sides of a square are increased by 2 inches, the area becomes 49 square inches. Find the length of the sides of the original square.
Click here to see answer by josgarithmetic(39613)

Question 1066957: A ladder is leaning against a building so that the distance from the ground to the top of the ladder is 1 foot less than the length of the ladder. Find the length of the ladder if the distance from the bottom of the ladder to the building is 3 feet.
Click here to see answer by stanbon(75887)

Question 1066974: How to find the quadratic equation of the following riots: {4, square root of 3}
Click here to see answer by Boreal(15235)

Question 1067008: x+1 2-x
5 +5 =126
Click here to see answer by ikleyn(52754)

Question 1067008: x+1 2-x
5 +5 =126
Click here to see answer by Alan3354(69443)

Question 1067043: If the cost, C, for manufacturing x units of a certain product is given by C=x^2-20x+55, find the number of units manufactured at a cost of $9955.

Click here to see answer by Boreal(15235)

Question 1067041: If the sides of a square are increased by 2 inches, the area becomes 49 square inches. Find the length of the sides of the original square.
Click here to see answer by ikleyn(52754)

Question 1067042: The length of the base of a triangle is twice its height. If the area of the triangle is 196 square kilometers, find the height.
Click here to see answer by rothauserc(4718)

Question 1067007: I need help please!
Use technology to find the quadratic regression curve through the given points. HINT [See Example 5.] (Round all coefficients to four decimal places.)
{(0, 1), (-2, 7), (-4, 4)}
y(x)=
Im so confused please help
Click here to see answer by KMST(5328)

Question 1067099: Solve using the quadratic formula. Approximate answers to the nearest tenth.5x^2=6+2x
Type your answer, then press Enter.
Follow these examples:
x = 1 or 3
x = -5.3 or -0.1 im confused
Click here to see answer by LinnW(1048)

Question 1067207: The product of two consecutive room numbers is 156. Find the room numbers.
The number of the first room, or the smaller room number is?
The number of the second room is?
Click here to see answer by Alan3354(69443)

Question 1067205: The side of a square equals the width of a rectangle. The length of the rectangle is 10 meters longer than its width. The sum of the areas of the square and the rectangle is 208 square meters. Find the side of the square.
Click here to see answer by chen.aavaz(62)

Question 1067204: The length of the base of a triangle is twice its height. If the area of the triangle is 196 square kilometers, find the height.
Click here to see answer by Boreal(15235)

Question 1067316: 4x^2-49= solve
Click here to see answer by josgarithmetic(39613)

Question 1067315: (15-24x+18y)/ 0.75 solve
Click here to see answer by josgarithmetic(39613)

Question 1067298: how can i simplify the square (root of 6x+4 minus 1)/4=x
Click here to see answer by Alan3354(69443)

Question 1067314: (x^2/3)^6 solve
Click here to see answer by josmiceli(19441)

Question 1067413: 2x^2+8x-3=6x
Click here to see answer by ikleyn(52754)

Question 1067715: f(x) = 5x^2 − 100, find x

Click here to see answer by Alan3354(69443)

Question 1067731: Solve for x, 1/x - 1/x+b = 1/a - 1/a+b
Click here to see answer by josgarithmetic(39613)

Question 1067736: Two workers A and B together could finish a work in 8 days. They worked together for 6 days and A left the work. The remaining work was completed by B alone in 6 days. How many days would each take to complete the work individually?
Click here to see answer by josgarithmetic(39613)

Question 1067683: the length of a painting is 5 centimeters more than its width. it is matted in a frame whose length is 8 more than twice the width of the painting and width is five less than twice the width of the painting. the frame alone had an area of 650 square cm find the dimensions of the painting and the frame
Click here to see answer by ankor@dixie-net.com(22740)

Question 1067755: What is the greatest zero of the function f, where f(x) = x^3 - 2x - 0.5
Click here to see answer by Edwin McCravy(20054)

Question 1067776: so the issue is complete the square when a does not equal 0.
m^2-m-15=0
Click here to see answer by josgarithmetic(39613)

Question 1067776: so the issue is complete the square when a does not equal 0.
m^2-m-15=0
Click here to see answer by ikleyn(52754)

Question 1067776: so the issue is complete the square when a does not equal 0.
m^2-m-15=0
Click here to see answer by rothauserc(4718)

Question 1067790: A gardener has 100 meters of fencing to enclose two adjacent rectangular gardens (see figure). The gardener wants the enclosed area to be 336 square meters. What dimensions should the gardener use to obtain this area? (Round your answers to two decimal places.)
4x+3y=100
Click here to see answer by ikleyn(52754)

Question 1067784: State the range of the numbers displayed in column x and column y.
x y
1 5
2 7
3 9
Click here to see answer by Alan3354(69443)

Question 1067819: Solve the quadratic equation by Factorization method , 1/x - 1/x+b = 1/a - 1/a+b
Click here to see answer by josgarithmetic(39613)

Question 1067820: Solve the quadratic equation by Factorization method 12x+17/3x+1 -2x+15/x+7 =16/5
Click here to see answer by josgarithmetic(39613)

Question 1067824: Solve the quadratic equation by Factorization method , 1/x - 1/x+b = 1/a - 1/a+b

Click here to see answer by josgarithmetic(39613)

Question 1067823: 1.y=X2-x
2.y= x3
Click here to see answer by ikleyn(52754)

Question 1067839: kx^2-14x+8=0 is six times the other

Click here to see answer by ikleyn(52754)

Question 1068009: Pls help me solve this question x2+12x+36=0
Click here to see answer by Theo(13342)

Question 1068045: the equation 4x�- 24x + 4y� + 72y = 76 is equivalent to
Click here to see answer by josgarithmetic(39613)

Question 1068045: the equation 4x�- 24x + 4y� + 72y = 76 is equivalent to
Click here to see answer by ikleyn(52754)

Question 1068091: PLEASE HELP ME!!
how do you write the equation of a parabola in the standard form y=ax^2+bx+c, given 2 points and the x-intercept??
point 1: (5,30)
point 2: (15,30)
x-intercept: (20,0)
Click here to see answer by t0hierry(194)

Question 1067952: drew is drawing plans for a new 270 square foot garage he needs to be able to fit two vehicles in the garage that are 6 feet by 16 feet use the diagram to determine the width of the spaces if they are equivalent what are the dimensions of the garage
Click here to see answer by Fombitz(32388)

Question 1068172: Use the quadratic formula to solve x� + 7x + 8 = 0.
What are the solutions to the equation?
Round irrational solutions to the nearest tenth.
Click here to see answer by stanbon(75887)

Question 1068193: Simplify.-3(-3a)(6b)

Click here to see answer by stanbon(75887)

Question 1068198: Solve H = 1/2gt^2+vt+h for t.
Click here to see answer by stanbon(75887)

Question 1068210: Find the distance between (3, -2) and (-5, 3).
Click here to see answer by Alan3354(69443)

Question 1068268: a^3+B^3 take them ad Alpha and Beta.
If aB=c/a and a+B=-b/a.
First simplify them to the aB and a+B format
and then substitute the value.
My method was,
(a+B)(a^2+B^2-aB)
How should I simplify a^2+B^2?
Click here to see answer by Lightning_Fast(78)

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, 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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, 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