Question

Simplificar:
a. (–5z + 2y) – (2z – 5y – 7x –1) + (–3z – 4y – 9x) – (–4y + 8x – 5) =
b. x(3x + 8) – 5x(2 – x) – 2x( 3x – 4) – 8x2 =

Answer 1

Respuesta:

a. -10z+7y-10x+6

b. -6x²+6x

Explicación paso a paso:

a. (–5z + 2y) – (2z – 5y – 7x –1) + (–3z – 4y – 9x) – (–4y + 8x – 5)

-5z+2y-2z+5y+7x+1-3z-4y-9x+4y-8x+5

-10z+7y-10x+6

b. x(3x + 8) – 5x(2 – x) – 2x( 3x – 4) – 8x²

3x²+8x-10x+5x²-6x²+8x-8x²

-6x²+6x