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16 items are filed under this topic.
The center and radius of a circle 2015-02-06
From ariana:
I need to find the center and the radius of this circle. I don't know how to put 9/2 than square it into a fraction.

x^2 + 2x + y^2 +9y=5

Answered by Penny Nom.
Completing the square 2009-10-02
From christopher:
how do i find the factors of x^2+3x+2 by completing the square ?
Answered by Robert Dawson.
The inverse of F(x)=x^2-6x+13, for x>3 2009-07-26
From Juan:
The function F is given by F(x)=x^2-6x+13, for x>3.

A. Write F(x) in the form (x-a)^2+b

B.Find the inverse function F^-1

C.State the domain of F^-1

Answered by Penny Nom.
Completing the square 2009-04-27
From Daniel:
I tried following an example of yours but I still couldn't figure it out. Here is my question,

2x^2 - 6x + 1 = 0.

Any help would be greatly appreciated.

Answered by Stephen La Rocque.
Factor 9x^2 + 6x + 4 2008-11-21
From Jonah:
how can i solve this by factoring: 9x^2 + 6x + 4
Answered by Harley Weston.
A rectangle word problem 2008-04-10
From Nick:
A rectangle is twice as long as it is wide. If the length and width are both increased by 5cm, the resulting rectangle has an area of 50cm^2. Find the dimensions of the original.
Answered by Penny Nom.
Complete the square 2008-04-09
From jessica:
can you check my answer please thanks


I got 2(x+2)^2-3 for when it asked to simplfy it to standard form of a quadratic equation

Answered by Stephen La Rocque.
Complete the square 2008-04-09
From jessica:
Use the technique of completing the square to put f(x)= 2x^2-4x+5 in the form f F(x)= a(x-h)^2+k were h,k=vertex of the parabola. identify the coordinate (h,k)of the maximum or minimum point of the associated parabola
Answered by Penny Nom.
More on completing the square 2007-11-29
From June:
x^2 - 6x = 16 I found you already had this question but the answer you gave did not help me to explain how to answer the problem for my daughter. I do not understand how to complete the square for this paticular question and the example you showed did not help. I would appreciate any further help you could give me.
Answered by Penny Nom.
Finding the center of an ellipse 2007-06-20
From Sima:
find the center of the ellipse with the equation 3x^2 +4y^2+18x-32y-5=0
Answered by Penny Nom.
Factor Completely 2007-05-29
From Ema:
Question 1:
Factor completely. 3x(x – 4) + 5(x – 4)
Question 2:
Factor completely. x^2 + 2x + 3

Answered by Penny Nom.
Factor 12x^2 - 20x - 8 2002-04-30
From Crystal:
Factor Completely: 12x2 - 20x - 8
Answered by Penny Nom.
Solving x^2-3x+5=0 2001-11-30
From Katy:
How do you find the solution to x2-3x+5=0?
Answered by Penny Nom.
Completing a square 2000-07-10
From Lexa Michaels:
How do you complete a square? the textbook question is: x 4 + 64
Answered by Penny Nom.
The Quadratic Formula 1999-01-22
From Eric Morgan:
Hi my name is Eric Morgan and I m in 8th Grade honors math (middle) and I'd like to know how to prove the quadratic formula -bħsqrt of b(a)(c)over 2(a)
Answered by Penny Nom.
Minesweeper 2001-10-24
From Un eleve:
J'espere que vous pourrez m'aider. Est ce que vous connaissez un algorithme ou une strategie de resoulutiom pour le jeu du demineur (8x8 avec 10 mines)(Minesweeper).
Answered by Claude Tardif.



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