Questions on Algebra: Quadratic Equation answered by real tutors!

Tutors Answer Your Questions about Quadratic Equations (FREE)

Question 358694: please help me, i am very lost
a) Solve 2x^2 = 6
b) Find the x-intercepts of f(x)=2x^2-6

Click here to see answer by solver91311(16868)

Question 358708: solve using any method
2x^2=8x
Click here to see answer by checkley77(12569)

Question 358712: Find the vertex, the line of symmetry, and the maximum or minimum value of f(x). Graph the function.

1) The vertex is ???
2) The line of symmetry is x= ??
3) What is the maximum/minimum value of f(x)
4) Is the value f (-8)=2, a minimum or maximum??
Could someone please help me and please show me what the graph looks like

Click here to see answer by solver91311(16868)

Question 358686: Find the x-intercepts for the graph of the equation y=x^2+2x-3

please help me
Click here to see answer by checkley77(12569)

Question 358808: X^2 + 4X -5=0
Click here to see answer by edjones(7569)

Question 358814: solve the equation. If the exact roots cannot be found, state the consecutiveintegers between which roots are located.
-2x^2-4x=0
I don't not understand any part of this. I don't even know where to begin. I would greatly appreciate a step by step solution so I can understand how to do the rest of the problems.
Click here to see answer by edjones(7569)

Question 358867: Solve
If a pine cone falls from the top of a 96 foot tree, then how long does it take to reach the earth?
Click here to see answer by Alan3354(30955)

Question 358933: 1/x-2/(x+2)=-3
Click here to see answer by mananth(12270)

Question 358907: The hypotenuse of a right triangle is 4 cm longer than one leg and 8cm longer than the other leg. What is the length of each side?
Click here to see answer by Fombitz(13828)

Question 358660: find the center (h,k) and radius r of the circle x^2+y^-4x+2y=20 by completing the circle
Click here to see answer by Fombitz(13828)

Question 358697: find a quadratic model in standard form (0,3) (1,10) (2,19)
Click here to see answer by Fombitz(13828)

Question 358914: how do you simplify this equation
8-2d=.6(-4d)
Click here to see answer by Fombitz(13828)

Question 359024: For the following equation, state the value of the discriminant and then describe the nature of the solutions.

1) what is the value of the discriminant???
2) Does the equation have one real solution, two real solutions, or two imaginary solutions???

Really lost please help me
Click here to see answer by Fombitz(13828)

Question 359025: Solve

1) The solution set is????
"use at least one inequality or compund inequality to express your answer"

Please help me
Click here to see answer by Fombitz(13828)

Question 359036: Solve

the solution or solutions for v are v=????

please help me, i am lost
Click here to see answer by ewatrrr(10682)

Question 359091: how would i solve this equation i dont uderstand it 9x^2+6x+3=0
Click here to see answer by Fombitz(13828)

Question 359091: how would i solve this equation i dont uderstand it 9x^2+6x+3=0
Click here to see answer by vleith(2825)

Question 359153: Please solve the following equation by using factors(please do not use the quadratic formula)
(2x-5)(x-2)=15
Thank you
Click here to see answer by ewatrrr(10682)

Question 359153: Please solve the following equation by using factors(please do not use the quadratic formula)
(2x-5)(x-2)=15
Thank you
Click here to see answer by Fombitz(13828)

Question 359149: Please solve the following equations by factors(Please do not use the quadratic formula)

x squared - 2x-3=0

4x squared -29x+7=0
Click here to see answer by Fombitz(13828)

Question 359144: Please factorise the following (Please do not use the quadratic formula)
7x squared -18x+8

2x squared +11x+14
Click here to see answer by ewatrrr(10682)

Question 358701: For the following equation, state the value of the discriminant and then describe the nature of the solutions.

What is the value of the discriminant??
The equation has two real solutions, two imaginary solutions, or one real solution???
please help me
Click here to see answer by Fombitz(13828)

Question 359205: find the domain and range of
14x^2-16
Click here to see answer by Fombitz(13828)

Question 359206: what are the x and y intercepts of the equation x^2+y^2=49 ?
Click here to see answer by Fombitz(13828)

Question 359299: Solve

The solution is x = ???

please simplify

please help me i am really lost
Click here to see answer by unlockmath(1599)

Question 359285: Very lost please help me

Solve

The solution is X= ???
Click here to see answer by checkley77(12569)

Question 359147: Please factorise the following(Please do not use the quadratic formula)
12x squared +17xy-5y squared

Thank you
Click here to see answer by Edwin McCravy(8879)

Question 359424: 6x^4 - 13x^2 + 5 = 0
Click here to see answer by mananth(12270)

Question 359435: Find a quadratic equation in standard form to model the data in the table.
x y
9 5
10 10
11 5
12 -10
13 -35
Click here to see answer by jrfrunner(365)

Question 359539: 6x2 - 20 + 7x = 0

Click here to see answer by mananth(12270)

Question 359547: define and give the importance of quadratic equation in real life situation ?
Click here to see answer by vleith(2825)

Question 359573: For the following equation, state the value of the discriminant and then describe the nature of the solutions.

1) What is the value of the discriminant ??
2) Does the equation have two real solutions,two imaginary solutions, or one real solution???
please help me, i have been stuck on this one for days. If someone could show me what the answer is supposed to be i would appreciate it greatly. Thank you
Click here to see answer by Fombitz(13828)

Question 359576: please help me, very lost

Find the vertex, the line of symmetry, and the maximum or minimum value of f(x). Graph the function.

f(x) = 1/5(x+8)^2+2

1) The vertex is "ordered pair" ??
2) The line of symmetry is x = ??
3) What is the maximum/minimum value of f(x) ??
4) Is the value, f(-8) = 2 a minimum or maximum ??
Click here to see answer by Fombitz(13828)

Question 359581: Very stuck, please help me please
Solve

The solution is x = ???
Click here to see answer by vleith(2825)

Question 359571: Please help me, and if u could show me to the answer i would appreciate it muchly.

Solve

The solution is x = ???
Click here to see answer by Alan3354(30955)

Question 359571: Please help me, and if u could show me to the answer i would appreciate it muchly.

Solve

The solution is x = ???
Click here to see answer by vleith(2825)

Question 359467: A baseball is hit straight upwards with an initial velocity of 72 feet per second and leaves the bat at an initial height of 3 feet. Write a formula, s(t), that models the height of the baseball after t seconds.
Click here to see answer by ankor@dixie-net.com(15623)

Question 359633: write a quadratic equation with -3/4 and 4 as its roots, write the equation in form ax^2+bx+c=0, where a,b, and c are integers
Click here to see answer by Jk22(389)

Question 359716: Find the real solution of the equation
x^6-35x^3=216
Click here to see answer by ewatrrr(10682)

Question 359965: f(x)=x2-12x+12 finding the vertex of the quadratic equation
Click here to see answer by Fombitz(13828)

Question 360031: Vertex at (2,1) and passes the point (0,-3). Find the quadratic function. f(x)=
Click here to see answer by Jk22(389)

Question 360001: Why do you factor a quadratic equation before you solve? How do you compute the intercepts of a quadratic function? What is the number of x- and y-intercepts that quadratic functions may have?
Click here to see answer by Fombitz(13828)

Question 360224: Hello! Jess here! I was wondering if someone could help me. This week my class is working on problems and I don't quite understand how to obtain the answer of some of them. If someone could be so kind as to lead me through (with all the steps) the following problem, I would be most appreciative.
The directions are: Solve the equation by the square root property.
6x^2=96
Click here to see answer by JBarnum(2044)

Question 360220: Hi, I need some help. I am required to show my work, and I have NO idea how to obtain an answer for this kind of problem. If someone could help me, I would be most appreciative. ;o)
Directions: Solve
If a $2000 investment compounded to $2289.80 after 2 yrs, determine the annual interest rate of the investment. Use the compound interent formula A=P(1+r)^t

Click here to see answer by unlockmath(1599)

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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, 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