16 items are filed under this topic.
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The center and radius of a circle |
2015-02-06 |
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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. |
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Completing the square |
2009-10-02 |
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From christopher:
how do i find the factors of x^2+3x+2 by completing the square ?
Answered by Robert Dawson. |
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The inverse of F(x)=x^2-6x+13, for x>3 |
2009-07-26 |
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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. |
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Completing the square |
2009-04-27 |
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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. |
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Factor 9x^2 + 6x + 4 |
2008-11-21 |
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From Jonah:
how can i solve this by factoring: 9x^2 + 6x + 4
Answered by Harley Weston. |
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A rectangle word problem |
2008-04-10 |
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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. |
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Complete the square |
2008-04-09 |
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From jessica:
can you check my answer please thanks
f(x)=2x^2-4x+5
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. |
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Complete the square |
2008-04-09 |
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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. |
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More on completing the square |
2007-11-29 |
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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. |
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Finding the center of an ellipse |
2007-06-20 |
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From Sima:
find the center of the ellipse with the equation 3x^2 +4y^2+18x-32y-5=0
Answered by Penny Nom. |
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Factor Completely |
2007-05-29 |
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From Ema:
Question 1:
Factor completely.
3x(x 4) + 5(x 4)
Question 2:
Factor completely.
x^2 + 2x + 3
Answered by Penny Nom. |
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Factor 12x^2 - 20x - 8 |
2002-04-30 |
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From Crystal:
Factor Completely: 12x2 - 20x - 8
Answered by Penny Nom. |
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Solving x^2-3x+5=0 |
2001-11-30 |
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From Katy:
How do you find the solution to x2-3x+5=0?
Answered by Penny Nom. |
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Completing a square |
2000-07-10 |
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From Lexa Michaels:
How do you complete a square? the textbook question is: x 4 + 64
Answered by Penny Nom. |
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The Quadratic Formula |
1999-01-22 |
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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. |
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Minesweeper |
2001-10-24 |
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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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