Question

A)(a/5+4)²
B)(3a/2+2b/3)²

Answer 1

Resposta:

Explicação passo-a-passo:

(A)

(a/5+4)² =

(a/5)² + 2.a/5.4+4² =

a²/25 +8a/5+16

(B)

(3a/2+2b/3)² =

(3a/2)² + 2.3a/2.2b/3 + (2b/3)²

9a²/4 + 2ab + 4b²/9