Question

calcule
a) (x + 11)*(x-11)

b) (5 −a³) * (5 + a³)

c) (a-2b) * (a + 2b)

d) (2 + y²) * (2 - y²)​

Answer 1

a) (x + 11)*(x-11)

x²-11x+11x-121

x²-121

b) (5 −a³) * (5 + a³)

25-5a³-5a³+a⁶

25+a⁶

c) (a-2b) * (a + 2b)

a²+2ab-2ab-4b²

a²-4ab²

d) (2 + y²) * (2 - y²)

4-2y²+2y²-y⁴

4-y⁴

❤️ Boa noite ❤️

19/08

Answer 2

Resposta:

a)x²-121

b)25 -a⁶

c)a²- 4b²

d)4 -y⁴

Explicação passo-a-passo:

Cálculos se precisar:

a)(x+11)•(x-11)= x²+11x-11x-121 =x²+121

b)(5-a³)•(5+a³) =25 +5a³-5a³-a⁶ =25-a⁶

c)(a - 2b)•(a + 2b)= a²+2ab²- 2ab²- 4b² =a²-4b²

d)(2 + y²)•(2 - y²)= 4- 2y² - 2y²- 4y⁴= 4 - 4y⁴

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