Questions on Algebra: Quadratic Equation answered by real tutors!

Tutors Answer Your Questions about Quadratic Equations (FREE)

Question 305290: don't understand how to solve for x:
(x-b)2 = 4b2
book says 3b, -b
don't know how to get to that answer
Click here to see answer by Fombitz(32388)

Question 305291: Which one of the following is not equivalent to the others?
a. (root:3:(x))^(4)
b. root:4:(x^(3))
c. root:3:(x^(4))
d. x^(4/3)
e. (x^(1/3))^(4)
Click here to see answer by Fombitz(32388)

Question 305454: solve this following quadratic equations by factorisation:
a)x�+7x+12=0
24
b)6x�-5x+1=0
Please help im stuck on these, Thanks
Click here to see answer by london maths tutor(243)

Question 305374: find two consecutive intergers such that the square of the smaller plus twice the larger is 50
Click here to see answer by Fombitz(32388)

Question 305520: What do you do if you cant solve a problem?
Click here to see answer by Fombitz(32388)

Question 305520: What do you do if you cant solve a problem?
Click here to see answer by graphmatics(170)

Question 305520: What do you do if you cant solve a problem?
Click here to see answer by JBarnum(2146)

Question 305479: Can someone please help solve this using the quadratic formula ? thank you
5x^2-16x-84=0

Click here to see answer by checkley77(12844)

Question 305588: If f(x)= x^2-3 and g(x)=2x+1, calculate the values:
a) (f.g( (-2)
b) (g.f) (3)
Please calcuate step by step
Click here to see answer by solver91311(24713)

Question 305630: okk... it says, use the quadriatic formula to solve the equation. Round your solutions to the nearest hundreth.... and the problem is x squared + 10x +1 =0
Click here to see answer by solver91311(24713)

Question 305670: 8xsquared=60
Click here to see answer by Alan3354(69443)

Question 305740: Hello, once again I'm not understanding this question. Please help
A professional stunt performer at a theme park dives off a tower, which is 21m high, into water below. The performer's height, "h", in meters, above the water at "t" seconds after starting the jump is given by h=-4.9t^2+21.
a)How long does the performer take to reach the halfway point?
b)How long does the performer take to reach the water?
Thank you
Click here to see answer by richwmiller(17219)

Question 305755: If you are looking at a graph of a quadratic equation who do you detemine where the? solutions are
Click here to see answer by richwmiller(17219)

Question 305730: step by step help with quadratic formula problem
6x^2-2x+2=0
Thank you in advance
Click here to see answer by checkley77(12844)

Question 305729: step by step help with quadratic formula problem
6x^2-2x+2=0
Thank you in advance
Click here to see answer by checkley77(12844)

Question 305737: Please help me to solve this word problem. We have just started this new section and I just can't solve it.
Water from a fire hose is sprayed on a fire that is coming from a window. The window is 15m up the side of a wall. The equation H=-0.011x^2+.99x +1.6 models the height of the jet of water, H, and the horizontal distance it can travel form the nozzle, x, both in meters. What is the maximum height that the water can reach? and how far back could a firefighter stand, but still have the water reach the window?
Click here to see answer by nerdybill(7384)

Question 305947: how can i solve: sqrt32/sqrt25
Click here to see answer by checkley77(12844)

Question 305971: the melting point of subtance x is -20 degrees celsius and the boiling point is 90degrees celsius. how many celsius degrees are there between the melting point nd the boiling point?
Click here to see answer by themathtutor2009(81)

Question 305977: Solve: 15x^4-28x^2+5=0
Click here to see answer by Alan3354(69443)

Question 305982: xsquared-8x=33
Click here to see answer by JBarnum(2146)

Question 305982: xsquared-8x=33
Click here to see answer by texttutoring(324)

Question 306044: m^ + 10m
Click here to see answer by richwmiller(17219)

Question 306124: where on earth was quadratic equation initially used?
Click here to see answer by rfer(16322)

Question 306134: Can you please help me to solve the quadratic equation P=7^2+Po? t=the time in years and Po= population
t=0
t=1
t=2
t=4
Po=7000
Click here to see answer by stanbon(75887)

Question 306158: how do i do (1,-1) and (4-,4) with the slope intercept form?
Click here to see answer by stanbon(75887)

Question 306325: we have a disagreement with a classmate.
Is a quadratic equation or not?
We disagree on this.
Click here to see answer by Earlsdon(6294)

Question 306354: A television screen is 22 in. By 16.5 in. Write the ratio of the shorte side to the longer side in simplest form.
Click here to see answer by Alan3354(69443)

Question 306412: How do I find out the value of x and y in this equation;
20,000 + .15X = y
Click here to see answer by Fombitz(32388)

Question 306416: 3d=18-3d d=6
Click here to see answer by JBarnum(2146)

Question 306415: x+5=4x+26
Click here to see answer by JBarnum(2146)

Question 306417: -2g+15=45-8g
Click here to see answer by JBarnum(2146)

Question 306413: -2y+5=y-1
Click here to see answer by JBarnum(2146)

Question 306463: how can i get my domain and range fron a quafratic equation
Click here to see answer by Edwin McCravy(20054)

Question 306484: 4x+x+7=44
Click here to see answer by rfer(16322)

Question 306491: x^2-8x=48
find x.
Click here to see answer by checkley77(12844)

Question 306539:
Click here to see answer by checkley77(12844)

Question 306539:
Click here to see answer by ichudov(507)

Question 306538: how to graph a parabola using y=x2-2x-8
Click here to see answer by checkley77(12844)

Question 306537: how do i solve in detail this problem:
3x^2-8x=16
Click here to see answer by checkley77(12844)

Question 306560: X^(2)=2x+35
Click here to see answer by mananth(16946)

Question 306558: X^2=2x+35
Click here to see answer by checkley77(12844)

Question 306536: Question goes here. Write clearly!
Click here to see answer by themathtutor2009(81)

Question 306548: A ball was thrown in the air and I have the formula
h(t)=-4.9t(squared)+31t+1
31 is the initial velocity and 1 (meter) is the initail height
i need to find the height after 1 second. i also need to find the time it is at ten feet.
Do i use the quadradic formula and put the numbers in? if so, where do i put them in?
Click here to see answer by ankor@dixie-net.com(22740)

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