Questions on Algebra: Quadratic Equation answered by real tutors!

Tutors Answer Your Questions about Quadratic Equations (FREE)

Question 380432: A plane traveled a distance of 800 miles and returned the same distance. If the rate returning is 40 miles per hour faster than the rate going, and if the total flight took 8 hours, how fast did the plane travel on the return trip?
Click here to see answer by mananth(12270)

Question 380467: How can i sketch of a quadratic equation whose maximum is -3 who has no x- intercept , and with a=-1

Click here to see answer by stanbon(57395)

Question 378680: The roots of the equation x2+bx+c=0 where b and c are constants are –3
and 4. Find the values of b and c.

Click here to see answer by robertb(4012)

Question 380513: Y=2x+6

Click here to see answer by Fombitz(13828)

Question 380285: Estimate the roots of the equation by graphing. Round to the nearest tenth and write in set form x^2-6=0?

Click here to see answer by Fombitz(13828)

Question 380585: For which value or values of k, if any,does the quadratic equation in x,
(k-8)xx +. Kx. -1. =0
have exactly one solution
Click here to see answer by Jk22(389)

Question 380645: solve.
s^2+3s-54=0
Click here to see answer by ewatrrr(10682)

Question 380652: Factor completely.
9r^2-16
Click here to see answer by stanbon(57395)

Question 380643: solve.
r^2-6r-16=0
Click here to see answer by ewatrrr(10682)

Question 380636: im a right triangle, find the length of the side not given.
b=2, c-square root of 29
Click here to see answer by ewatrrr(10682)

Question 380656: Multiply and simplify by factoring. Assume that all ezpressions under radicals represent nonnegative numbers.
^3square root y^4 times ^3square root 81y^5
Click here to see answer by stanbon(57395)

Question 380658: Write a quadratic equation in the variable x having the given numbers as solutions. Type the equation in standard form, ax^2+bx+c=0
solution:8, only solution
Click here to see answer by stanbon(57395)

Question 380651: For the following equation, state the value of the discriminant and then descrebe the nature of the soluions.
12x^2-3x+2=0
Click here to see answer by ewatrrr(10682)

Question 380669: simplify by removing factors of 1.
n^2-81/(n+9)^2
Click here to see answer by stanbon(57395)

Question 380686: Evaluate the polynomial for x = -2.
2x^2-5x+5
Click here to see answer by ewatrrr(10682)

Question 380689: Factor
a^2 + 6a+9
Click here to see answer by ewatrrr(10682)

Question 380691: Convert to decimal notation.
8.64x10^7
Click here to see answer by rfer(12670)

Question 380682: solve
x^2+2x-4+0
Click here to see answer by ewatrrr(10682)

Question 380679: sove for x.
4x(x-1)-5x(x)=3
Click here to see answer by ewatrrr(10682)

Question 380701: subtract. simplify by collecting like radical terms if possible.
5 square root sign 12 - 4 square root sign 3
Click here to see answer by ewatrrr(10682)

Question 380702: subtract the polynomials.
(-11a^2+6a+4) - (6a^2+4)
Click here to see answer by ewatrrr(10682)

Question 380704: Mulitiply.
( r + 1/5)(r+1/3)
Click here to see answer by ewatrrr(10682)

Question 380700: Multiply.
(9x+4)(5x^2+5x+2)
Click here to see answer by ewatrrr(10682)

Question 380723: Find the vertex, the line of symmetry, and the maximum or minimum value of F(x). Graph the function.
f(x) +1/3(x+6)^2+5
Click here to see answer by ewatrrr(10682)

Question 380713: Rewrite teh following expression with positive exponents.
(12xy) ^-5/7
Click here to see answer by user_dude2008(1861)

Question 380697: Find the following.
^20 square root sign (-6)^20
Click here to see answer by user_dude2008(1861)

Question 380718: use rational exponenents to simplify.
^3 square root sign x ^12
Click here to see answer by user_dude2008(1861)

Question 380717: Find all numbers for which the rational expression is undefined.
N^3-5n/n^2-9
Click here to see answer by user_dude2008(1861)

Question 380684: Divide and simplify.
d^2/d^14
Click here to see answer by user_dude2008(1861)

Question 380671: Factor completely.
4s^2 + 9 -12s
Click here to see answer by user_dude2008(1861)

Question 380672: Factor the trinomial.
a^3-2a^2-35a
Click here to see answer by user_dude2008(1861)

Question 380721: Find the greatest common factor for the group of terms.
-30a^4, 5a^5
Click here to see answer by user_dude2008(1861)

Question 380673: Factor completely.
12a^2+36ad+27d^2
Click here to see answer by user_dude2008(1861)

Question 380768: Winter wheat. While finding the amount of seed needed
to plant his three square wheat fields, Hank observed that
the side of one field was 1 kilometer longer than the side
of the smallest field and that the side of the largest field
was 3 kilometers longer than the side of the smallest field.
If the total area of the three fields is 38 square kilometers,
then what is the area of each field?
Click here to see answer by stanbon(57395)

Question 380863: Use the discriminant to determine how many roots the graph of the following equation will have.
x^2-8x+16
Click here to see answer by stanbon(57395)

Question 380819: Solve
(x-6)^2=x
Click here to see answer by robertb(4012)

Question 381030: solve this equation by using the quadratic formula 6x^2=-12x-4

Click here to see answer by stanbon(57395)

Question 381034: Use the discriminant to determine the number and type of solutions of the equations.Your anwser should be one real root, two real roots or two complex roots. Circle the discriminant value.
x^2+8x-6=0
4x^2-4x+1=0
Solve
x^4-9x^2-112=0
x^2/3-7x^1/3+10=0
Click here to see answer by stanbon(57395)

Question 381064: For what values of k does the equation 3x^2-2x+k=0 have imaginary roots?
1. k is less than 1/3
2.k is greater than 1/3
3. k is less than 0
4. k is greater than 0
Click here to see answer by ptaylor(2048)

Question 381215: 3x^2+5x-2
Click here to see answer by jim_thompson5910(28598)

Question 381217: what are the factors of q3-q2+2q-2

Click here to see answer by jim_thompson5910(28598)

Question 381218: what are the factors of t4-81
Click here to see answer by robertb(4012)

Question 381287: 2x^2-3x=-5
Use quadratic formula to solve equation
Click here to see answer by mananth(12270)

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