SOLUTION: Find the exact solution for the equation. {{{x^2+x-42=0}}}

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Question 128185: Find the exact solution for the equation.
x%5E2%2Bx-42=0
Answer by marcsam823(57) About Me  (Show Source):
You can put this solution on YOUR website!
x%5E2%2Bx-42=0
Factor: (you will need to find two numbers that sum to 1 and multiply to -42
%28x+-+6%29%28x+%2B+7%29+=+0
Solve for each factor:
x+-+6+=+0
x+=+6
x+%2B+7+=+0
x+=+-7
Both x = 6 and x = -7 are solutions to this problem. (You will usually have two solutions to problems of this type.)