Question

(5a+b)³ como fazer isso ​

Answer 1

Resposta:

(5a + b)³

$(5a) {}^{3} + 3 \times (5a) {}^{2} \times b + 3 \times 5ab {}^{2} + b {}^{3}$

$125a {}^{3} + 3 \times (5a) {}^{2} \times b + 3 \times 5ab {}^{2} + b {}^{3}$

$125a {}^{3 } + 3 \times 25a {}^{2} b + 3 \times 5ab {}^{2} + b {}^{3}$

$125a {}^{3} + 3 \times 25a {}^{2} b + 15ab {}^{2} + b {}^{3}$

$= 125a {}^{3} + 75a {}^{2} b + 15ab {}^{2} + b {}^{3}$

$Espero \: ter \: ajudado$

$Bons \: estudos$

Answer 2

Resposta:

$125a {}^{3} + 75a {}^{2}b + 15ab {}^{2} + b {}^{3}$

Explicação passo-a-passo:

$(5a + b) {}^{3} \\ (5a + b) {}^{3} \\ (5a) {}^{3} + 3 \times (5a) {}^{2} \times b + 3 \times 5ab {}^{2} + b {}^{3} \\ (5a) {}^{3} \\ 5 {}^{3}a {}^{3} \\ 125a {}^{3} \\ (5a) {}^{3} + 3 \times (5a) {}^{2} \times b + 3 \times 5ab {}^{2} + b {}^{3} \\ 125a {}^{3} + 3 \times (5a) {}^{2} \times b + 3 \times 5ab {}^{2} + b {}^{3} \\ (5a) {}^{3} + 3 \times (5a) {}^{2} \times b + 3 \times 5ab {}^{2} + b {}^{3} \\ (5a){}^{2} \\ 5 {}^{2}a {}^{2} \\ 25a {}^{2} \\ (5a) {}^{3} + 3 \times (5a) {}^{2} \times b + 3 \times 5ab {}^{2} + b {}^{3} \\ 125a {}^{3} + 3 \times 25a {}^{2}b + 3 \times 5ab {}^{2} + b {}^{3} \\ (5a) {}^{3} + 3 \times (5a {}^{2}) \times b + 3 \times 5ab {}^{2} + b {}^{3}\\3 \times 5ab {}^{2} \\ 15ab {}^{2} \\ (5a) {}^{3} + 3 \times (5a {}^{2}) \times b + 3 \times 5b {}^{2} + b {}^{3} \\ 125a {}^{3} + 3 \times 25a {}^{2}b + 15ab {}^{2} + b {}^{3} \\ 3 \times 25a {}^{2}b \\ 75a {}^{2}b \\ 125a {}^{3} + 3 \times 25a {}^{2}b + 15ab {}^{2} + b {}^{3} \\ 125a {}^{3} + 75a {}^{2}b + 15ab {}^{2} + b {}^{3} \\ resposta \\ 125a {}^{3} + 75a {}^{2}b + 15ab {}^{2} + b {}^{3}$