SOLUTION: Determine the zeros of the function x2-16x + 63 = 0

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Question 606665: Determine the zeros of the function x2-16x + 63 = 0
Answer by ewatrrr(24785) About Me  (Show Source):
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Hi,

Determine the zeros of the function:

 x2-16x + 63 = 0

Factoring***

(x-7)(x-9) = 0

(x-7) + 0 , x = 7

(x-9) = 0 , x = 9

Checking our factoring using the FOIL method***

F	First terms  x^2

O	Outside terms -9x

I	Inside terms  -7x

L	Last terms    63