## Intermediate Algebra for College Students (7th Edition)

{$-2,-1,2$}
Given: $x^3+x^2=4x+4$ Solve the given expression as follows: $x^3+x^2-4x-4=0$ or, $x^2(x+1)-4(x+1)=0$ or, $(x+1)(x^2-4)=0$ or, $(x+1)(x-2)(x+2)=0$ or, $x=-1,-2,2$ Our solution set is: {$-2,-1,2$}