Question

Aplique a Regras dos Produtos notáveis:
(x+8)²
(2-3a)²
(3x+y²)²
(ab-c)²

Answer 1

Resposta:

(x+8)²=

(x+8).(x+8)=

x²+8x+8x+64=

x²+16x+64

(2-3a)²=

(2-3a).(2-3a)=

4-6a-6a+9a²=

9a²-12a+4

(3x+y²)²=

(3x+y²).(3x+y²)=

9x²+3xy²+3xy²+y⁴=

9x²+6xy²+y⁴

(ab-c)²=

(ab-c).(ab-c)

a²b²-abc-abc+c²=

a²b²-2abc+c²