Question

Factor the expression (x^2+x)(x^2+x-1)-2

Collected in the board: Factorization

zheng xs posted 1 year ago

Answer

(x^2+x)(x^2+x-1)-2

Let y=x^2+x, then the original expression is changed to

y(y-1)-2

=y^2-y-2

=(y-2)(y+1)

=(x^2+x-2)(x^2+x+1) //Back substitution

=(x+2)(x-1)(x^2+x+1)

Steven Zheng posted 1 year ago

Scroll to Top