Question

ajuda PLS mano urgente​

Answer 1

Explicação passo-a-passo:

a) 7x-4x+3x+2y=6x+2y

7x-4x+3x-6x=2y-2y

3x-3x=2y-2y

0

b) 15x²+5x²-2x²

20x²-2x²

18x²

c) 15xy-xy+4xy

14xy+4xy

18xy

d) 9b³-2b³+6x²+b³-8x²

7b³+b³-2x²

8b³-2x²

2(4b³-x²)

e) 8mn+2m²-5mn+3m²

3mn+5m²

m(3n+5m)

f) a⁶-3a³-6a⁶-2a³+a³+2a⁶

-3a⁶-4a³

-a³(3a³+4)