Question

a) (3a – 5x) . ( 3a – 2x) =

b) ( 5x – 2ax + 3y) . ( 2x 2 + 3 a 2 – 2y 2 ) =

c) 3 (2x 2 + x + 5) . (3x – 1) =

Answer 1

Resposta:Segue as contas abaixo na explicação

Explicação passo-a-passo:

a) (3a – 5x) . ( 3a – 2x)

    9a²-6ax-15ax+10x²

    9a²-21ax+10x²

b) ( 5x – 2ax + 3y) . ( 2x² + 3 a² – 2y² )

    10x³+15a²x-10xy²-4ax³-6a³x+4axy²+6x²y+9a²y-6y³

c)3 (2x² + x + 5) . (3x – 1)

  3.(6x³-2x²+3x²-x+15x-5)

  3.(6x³+x²+14x-5)

  18x³+3x²+42x-15