Question

15ptss!!!!!!
Efetue:
a) (2a+2)³
b)(3/4 a^2-2/5 b^2 )^2

Answer 1

Resposta:

letra a) (2a+2)³= (2a+2)²x(2a +2) = (4a²+8a+4)x(2a+2) = (8a³+16a²+8a+8a²+16a+8)= ( 8a³+24a²+24a+8)