Question

A)(3×+y)²
B)(a+6)²
C)(8+9×)²

Answer 1

Resposta:

A)

${(3x + y)}^{2} = 9 {x}^{2} + 6xy + {y}^{2}$

B)

${(a + 6)}^{2} = {a}^{2} + 12a + 36$

C)

${(8 + 9x)}^{2} = 64 + 144x + 81 {x}^{2}$

Prontíssimo!!