SOLUTION: For this question factor the algebraic expression completely. x^2 -16x + 63

Question 35095: For this question factor the algebraic expression completely.
x^2 -16x + 63
Found 2 solutions by stanbon, lyra:
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
x^2 -16x + 63
(x-9)(x-7)
Answer by lyra(94) (Show Source): You can put this solution on YOUR website!
(x-9)(x-7)
See also:

Solved by pluggable solver: SOLVE quadratic equation with variable

Quadratic equation (in our case ) has the following solutons:

For these solutions to exist, the discriminant should not be a negative number.

First, we need to compute the discriminant : .

Discriminant d=4 is greater than zero. That means that there are two solutions: .

Quadratic expression can be factored:

Again, the answer is: 9, 7. Here's your graph:

Hope this helps,
lyra
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