Question

efetue as multiplicações:

A) 3a(5a³+4a-3)=

B) 4x²(2x²+5x-7)=

C) (7x-3xy+4y)2xy=

D) (3a+2b-5c)2a= ​

Answer 1

Resposta:

A) 3a(5a³+4a-3)= 15$a^{4}$ + 12a² - 9a

B) 4x²(2x²+5x-7)= 8$x^{4}$ + 20x³ - 28

C) (7x-3xy+4y)2xy= 14x²y - 6x²y² + 8xy²

D) (3a+2b-5c)2a= ​6a² + 4ab - 10ac

Explicação passo a passo:

Answer 2

Resposta:

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