Question

-3(x+y)-4[-x+2{-x+2y-3(x-y+2)}-2x]

Answer 1

Respuesta:   $25x-23y+16$

Pasos:

$-3\left(x+y\right)-4\left(-x+2-x+2y-3\left(x-y+2\right)-2x\right)$

$\mathrm{Expandir}\:-x+2-x+2y-3\left(x-y+2\right)-2x:\quad 5y-7x-4$

$=-3\left(x+y\right)-4\left(5y-7x-4\right)$

$\mathrm{Expandir}\:-3\left(x+y\right):\quad -3x-3y$

$=-3x-3y-4\left(5y-7x-4\right)$

$\mathrm{Expandir}\:-4\left(5y-7x-4\right):\quad -20y+28x+16$

$=-3x-3y-20y+28x+16$

$\mathrm{Simplificar}\:-3x-3y-20y+28x+16:\quad 25x-23y+16$

$=25x-23y+16$