Respuesta :

pjdemarco

Answer:

a. (-42x)(+2x) = -84x^2

b. (+7x)(-4x)(-3x) = 84x^3

c. (+7)(-4)(-4) = 112

d. (+10)(-2)(-2)(+4) = 160

Answer:

a. (-42x)(+2x) = -84x

b. (+7x)(-4x)(-3x) = -84x

c. (+7)(-4)(-4) = -112

d. (+10)(-2)(-2)(+4) = -160

Step-by-step explanation:

This is like multiplication.

Please let me know if I got something wrong.