Question

Calcule as expressões. a) (+5x) . (−4x2) = b) (−2x) . (+3x) = c) (+5x) . (+4x) = d) (−n) . (+ 6n) = e) (−x3) . (5yx2) . (2y3) = ME AJUDEM !!!

Answer 1

Resposta:

a) (+5x) . (−4x2) =

-20x^3

b) (−2x) . (+3x) =

-6x^2

c) (+5x) . (+4x) =

20x^2

d) (−n) . (+ 6n) =

-6n^2

e) (−x3) . (5yx2) . (2y3)

= (-x^3). (10y^4x^2)

-10y^4x^5