Question 119091
-x+xsquared=56 
{{{(-x+x^2)}}}=56
{{{(x^2-x-56)}}}=0 [subtract 56 from both sides; set the equation equal to zero]
(x-8)(x+7)=0 [factor]
x-8=0 [set each factor equal to zero and solve for the x-value]
x=8
and 
x+7=0
x=-7