Question

si x^ 2+3x hallar (x+1)(x+2)+(x+5)(x-2)

Answer 1

Explicación paso a paso:

(x+1)(x+2)+(x+5)(x-2)=

(x^2+3x+2)+(x^2+3x-10)=

2x^2+6x-8=2(x^2+3x-8)