Question

(2x+3)(x-1)-(5x-1)(x+2)

Answer 1

$2xx+2x*-1+3x+3*-1-(5x-1)(x+2)$
$2x^2+x-3-(5x-1)(x+2)$
$2x^2+x-3+(-(5x)--1)(x+2)$
$2x^2+x-3+(-5x--1)(x+2)$
$2x^2+x-3+(-5x+1)(x+2)$
$2x^2+x-3+(-5xx-5x*2+1x+1*2)$
$2x^2+x-3+(-5x^2-9x+2)$
$2x^2+x-3-5x^2-9x+2$
$-3x^2+x-3-9x+2$
$-3x^2-8x-3+2$
$-3x^2-8x-1$