Question

1) Efetue:
a) 3x (x 2 - 2x + 3) =
b) 2 ( 2 + 3a - 4) =
c) 5a 2 (a 3 - 2) =
d) 4xy (3x 2 - y) =
e) 3x 3 (2x 2 + 7x - 8) =
f) 7y 4 (3y 6 - 2y 3 + y) =

2) Efetue:
a) (2x - 1) . (3x 2 + 4x) =
b) (x + 1) . (3x - 2) = c) (a - 1) . (a + 1) =
d) (x - 2) . (x + 3) =
e) (3x + 5) . (2x - 4) = f) (x 2 + x) .( 2x - 5) =

Answer 1

Resposta:

a)3x(x2-2x+3)=5x²-2x+3