SOLUTION: if a number is added to its square, the result is 56. Find the number.

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Question 198706: if a number is added to its square, the result is 56. Find the number.
Answer by user_dude2008(1862) About Me  (Show Source):
You can put this solution on YOUR website!
x+x^2=56

x^2+x-56=0

(x+8)(x-7)=0

x+8=0 or x-7=0

x=-8 or x=7

Numbers are 8 or -7