Question

Calcule:
A) 3m+4m-7m
B) -3x-5x+12x
C)+5x²+12x²

Answer 1

resposta:

a)0

b)4x

c)169x

Explicação passo-a-passo:

a)3m+4m-7m

0

b)-3x-5x+12x

-8x+12x

4x

c)+5x²+12x²

+25x+144x

169x

Answer 2

Resposta:

A)

(3+4-7)m

(7-7)m

0m

B)

(-3-5+12)x

(-3+7)x

+4x

C)

(5+12)x^2

17x^2