Question

Calcule os produtos
(x-2).(x+5)=
( 2x-4).(3x+1)=

Answer 1

(x-2).(x+5)=
$x^{2}$+5x-2x-10=
$x^{2} +3x-10=$

(2x-4).(3x+1)=
$6x^{2} +2x-12x-4=$
$6x^{2}-10x-4=$