Question

6- simplifique as expressões abaixo

a) a(5a-1)+(a+2)²
b) (2x+3)²-x(x-4)
c) (y-3)(y+2)-(y+1)²
d) (9y+1)²-(y+9)²
e) (2a+3b)²-4a(a+3b)
f) (1+5a)²+25(1-a)²​

Answer 1

Resposta:

6a-1a+2a+4

4x+9 - 2x-4x

2y+6-2y+1y

...

entendeu?