Question

Resolver a questao (-4x2+7x+5)-(2x2+6x+4)-(3x2+4x-5)

Answer 1

Resposta:

$( - 4 \times 2 + 7x + 5) - (2 \times 2 + 6x + 4) - (3 \times 2 + 4x - 5) \\ ( - 8 + 7x + 5) - (4 + 6x + 4) - (6 + 4x - 5) \\ - 8 + 7x + 5 - 4 - 6x - 4 - 6 - 4x + 5 \\ - 12 - 3x \\ - 3(4 + x)$