Question

Efetue as multiplicações

A) 3y . (4x2 - 2x3 -7)
B) (x4 - 3x2 - 5x + 1) . (-4x)
C) (2x +3) . (5x - 1)

Answer 1

a)12x^2 y - 6x^3 y - 21y
b)-4x^5 + 12x^3 +20x^2 -4x
c)10x^2 - 2x + 15x - 3 = 10x^2 + 13x - 3