SOLUTION: x^2-8x-20=0 Solving for indicated variable. State type of factoring.

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Question 857051: x^2-8x-20=0 Solving for indicated variable. State type of factoring.
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
Complete the square:
x%5E2-8x-20=0
x%5E2-8x=20
x%5E2-8x%2B16=20%2B16
%28x-4%29%5E2=36
x-4=0+%2B-+6
x=4+%2B-+6
x=10 and x=-2