Questions on Algebra: Quadratic Equation answered by real tutors!

Tutors Answer Your Questions about Quadratic Equations (FREE)

Question 422340: What are the x-intercept(s) of the graph of the equation y − x2 = −6x − 7?

Click here to see answer by ewatrrr(10682)

Question 421961: Fill in the missing terms in the numerator, and then use long division to find the quotients.
x^3+5x^2-18
_______________
x+3
Its divided by
pls show me the steps to get the answer
Click here to see answer by ewatrrr(10682)

Question 422434: Creating my own quadratic equation that cannot be solved by factoring, but can be solved using the quadratic formula. and solving the equation.
Click here to see answer by stanbon(57282)

Question 422555: y+4x^2=0
decide wheter the graph of the equation opens up or down. then find the coordinates of the vertex
Click here to see answer by MathLover1(6625)

Question 422550: how would you find the coordinates of the vertex of the graph y=2x(sqared by 2)+4x-2
Click here to see answer by Gogonati(809)

Question 422595: I'm really confused right now on this problem;
6x^2-12x+1=0
This is what I have done so far,

x=12+ sqrt 12+?/12 <-- The part I'm stuck on
I know I'm almost done and that the answer won't be a nice perfect number
And I used the equation solver thing, but the answer won't help unless I understand how it got there, xD
Anyways
Sorry if I didn't write the formula right,
Thanks in advance too. ^^
Click here to see answer by Edwin McCravy(8893)

Question 422607: how would i solve x^2-9=0?
Click here to see answer by MathLover1(6625)

Question 422574: How Do I Do This Problem????
T^2+3=0
Click here to see answer by ankor@dixie-net.com(15645)

Question 422688: Fill in the missing terms in the numerator, and then use long division to find the quotients.
9x^3+14x+5
_____________
3x+1
Its divided by
Pls show me the steps to get the answer. thanks
Click here to see answer by rfer(12654)

Question 422721: Solve the following system of linear equations. (If the system has no solution, enter NONE for each answer. If the system is dependent, enter INFINITELY MANY for each answer.)
x-y=4
3x-3y=12
x = ?
y = ?
Pls show me the steps on how to get the answer. thanks
Click here to see answer by stanbon(57282)

Question 422720: Solve the following system of linear equations. (If the system has no solution, enter NONE for each answer. If the system is dependent, enter INFINITELY MANY for each answer.)
x+y=6
2x+2y=-2
x = ?
y = ?
Pls show me the steps on how to get the answer. thanks
Click here to see answer by stanbon(57282)

Question 422719: Solve the following system of linear equations. (If the system has no solution, enter NONE for each answer. If the system is dependent, enter INFINITELY MANY for each answer.)
x+5y=2
y=x+4
x = ?
y = ?
Pls show me the steps on how to get the answer. thanks
Click here to see answer by shree840(260)

Question 422892: Divide the following.
2x^2-4x+1
____________
2x+8
Its divided by
Pls show me the steps to get the answer. Thanks
Click here to see answer by rfer(12654)

Question 423048: Why are there usually two solutions in quadratic equations
Click here to see answer by richard1234(5390)

Question 423057: f(x)= -2x^2+4x+6.plot the graph of the function and find the symmetry axis.
Click here to see answer by rfer(12654)

Question 423208: Hello, need an explanation on how to find the x intercepts, and the vertex of this equation y is less than or equal to -x^2+3x+2. I do not know how to factor yet, so if we could do it by guessing two points and checking by plugging them into the equation and finding some easy to graph points. Thanks soOoOoOo much!
Click here to see answer by stanbon(57282)

Question 423231: I have no idea how to graph this Quadratic Equation. x^2+5=0 Can u help me and explain where the points are supposed to go.
Click here to see answer by Alan3354(30993)

Question 423231: I have no idea how to graph this Quadratic Equation. x^2+5=0 Can u help me and explain where the points are supposed to go.
Click here to see answer by rfer(12654)

Question 423368: x^2/3-7x^1/3+6=0
Click here to see answer by ewatrrr(10682)

Question 423464: The question is Find the x-intcerpts(if any) for the graph of the quadratic function. F(x)= 2+3x+x^2
Please help me solve the equation.
Click here to see answer by stanbon(57282)

Question 423521: m^3 -49m=0
Click here to see answer by jim_thompson5910(28536)

Question 423544: How to factro this quadratic expression?
3x^2-4x-15
please help
Click here to see answer by scott8148(6628)

Question 423668: solve the system of equations what is the solution set
x+5y=6
x=7-5y
Click here to see answer by Alan3354(30993)

Question 423668: solve the system of equations what is the solution set
x+5y=6
x=7-5y
Click here to see answer by algebrahouse.com(1079)

Question 423723: Help me to solve:
10x^4 - 19x^2 + 6 = 0
Click here to see answer by stanbon(57282)

Question 423723: Help me to solve:
10x^4 - 19x^2 + 6 = 0
Click here to see answer by dnanos(83)

Question 423680: A triangle sail has an area of 76 square feet. Find the base and the height if the height measure is three more than twice the base. (use formula A= 1/2 bh)
Click here to see answer by mananth(12270)

Question 423981: Consider the quadratic function; f(x)=r^2 + (x+s)(x-s) here r,s are arbitary constants, find the min possible value for f and also the value of x for which the min is achieved.
my email address is jesssie87@yahoo.com.au
Click here to see answer by stanbon(57282)

Question 424009: An express train takes 1 hour less than a passenger train to travel 132 km between two stations a and b .if the average speed of express train is 11 km/hr than that of the passenger train , find the average speed of each train
Click here to see answer by robertb(4012)

Question 424078: A trader bought some petrol for $500. He paid $x for each litre of petrol.
a) Find in term of x, an expression for the number of litres he bought,
b) Due to a leak, he lost 3 litres of petrol. He sold the remainder of the petrol for $1 per litre more than he paid for it. Write down an expression, in terms of x, for the sum of money he received,
c) He made a profit of $20. i) Write down an equation in x to represent this information and show that it reduces to 3(x)^2 + 23 x -500 = 0. ii) Solve this equation, giving both your answers correct to one decimal place.
d) Find, correct to the nearest whole number, how many litres of petrol he sold.
*I know it's a long question, but please try to understand I can't put the parts separately because then they wouldn't make sense. Please answer as soon as possible. Much appreciated :) =)
Click here to see answer by mananth(12270)

Question 424086: Translate the following into a quadratic equation, and solve it:
The length of a rectangular garden is two more than its width; if the area of the garden is 35 square meters, what are its dimensions?

Click here to see answer by stanbon(57282)

Question 424144: I need to write a quadratic equation for the value of x having the given number of solution 9 being the only solution. I have to put in standard form quadratic form.
Click here to see answer by ankor@dixie-net.com(15645)

Question 424152: In 1994, the life expectancy of males in a certain country was 65.9 years. In 1999, it was 68.5 years. Let E represent the life expectancy in year t and let t represent the number of years since 1994.
The linear function that fits the data is
E(t)= ___t + ____
Round to the nearest 10th.
Use the function to predict the life expectancy of males in 2003.
E(9)=
Round to the nearest 10th.
Click here to see answer by josmiceli(9664)

Question 424181: Solve using the quadratic formula
x^2-4x+3=0
Click here to see answer by MathLover1(6625)

Question 424279: 1)Find the discriminate and then describe the nature of the solutions.
17x^2-10x+20=0
A. Two Real Solutions
B. Two imaginary solutions
C. One real solution
2)Subtract the Polynomials
(-9w^2+4w+3)-(8w^2+3)
Please help

Click here to see answer by htmentor(789)

Question 424353: Simplify completely: -5sgrt8x -6sgrt50x

Click here to see answer by stanbon(57282)

Question 424352: i have to find all real solution to equation 5(b-1)^2-4=221 and also i don't know how to apply quadratic formula to this equation.
Click here to see answer by stanbon(57282)

Question 424577: Find 2 numbers whose sum is 40 if the sum of their squares is to be a minimum. What is the minimum?
Click here to see answer by richard1234(5390)

Question 424630: completing the square x squared+5x=8any help would be appreciated thank you
Click here to see answer by Alan3354(30993)

Question 424630: completing the square x squared+5x=8any help would be appreciated thank you
Click here to see answer by nerdybill(6951)

Question 424632: any help would be appreciated thank you completing the square x squared+5x=8
Click here to see answer by Alan3354(30993)

Question 424823: x2+7x+12=0
Click here to see answer by linh117(31)

Question 424823: x2+7x+12=0
Click here to see answer by shree840(260)

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