Question

( 2x - y ) elevado a 3
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Answer 1

Resposta:

8x³-12yx²+6xy²-y³

Explicação passo-a-passo:

(2x-y)³= (2x-y).(2x-y).(2x-y)

(2x-y)³= [(2x)²+2.(2x).(-y)+(-y)²].(2x-y)=

(2x-y)³=[4x²-4xy+y²].(2x-y)=

(2x-y)³= 8x³-4yx²-8yx²+4xy²+2xy²-y³

(2x-y)³=8x³-12yx²+6xy²-y³

Espero ter ajudado!

Answer 2

(2x - y)³

(2x - y) • (2x - y)²

(4x² - 2xy - 2xy + y²) • (2x - y)

(4x² - 4xy + y²) • (2x - y)

8x³ - 4x²y - 8x²y + 4xy² + 2xy² - y³

8x³ - 12x²y + 6xy² - y³