SOLUTION: The square of an integer plus two times the integer is 35. Find all possible solutions.

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Question 635357: The square of an integer plus two times the integer is 35. Find all possible solutions.
Answer by mananth(16946) About Me  (Show Source):
You can put this solution on YOUR website!
let integer be x
x^2 +2x=35
x^2+2x-35=0
x^2+7x-5x-35=0
x(x+7)-5(x+7)=0
(x+7)(x-5)=0
x=-7 or 5