Question

Simplifique as expressões:
a) y.(x² + 2) – 3x.(xy + 5x²) – (2x²y – x³ + y)
b) 4x.(x³ + 3x) + 4.(3xy – xy) + x².(x – x²)
c) 4.(ab + a²b²) – 2a.(b – ab²)
d) (xy – y) . (2x – y) + x²y – xy²

Answer 1

Resposta:

Abaixo.

Explicação passo a passo:

a) x²y + 2y - 3x²y - 15x³ - 2x²y + x³ - y = -14x³ - 4x²y + y

b) 4x⁴ + 12x² + 12xy - 4xy + x³ - x⁴ = 3x⁴ + x³ + 12x² + 8xy

c) 4ab + 4a²b² - 2ab + 2a²b² = 6a²b² + 2ab

d) 2x²y - xy² - 2xy + y² + x²y - xy² = 3x²y - 2xy² - 2xy + y²