Question

Calcule as multiplicações abaixo.

a) 5x . (−4x2)

b) −2x . 3x’

c) 5x . 4x

d) −n . 6n

e) −6x2 . 3x2

f) 4x2 . 5x3

g) 2y . (−7x)

h) −2x . (−3y)

me ajudem pfvr

Answer 1

Resposta:

a) 5x . (−4x2)

$- 20 {x}^{3}$

b) −2x . 3x’

$- 6 {x}^{2}$

c) 5x . 4x

$20 {x}^{2}$

d) −n . 6n

$- 6 {n}^{2}$

e) −6x2 . 3x2

$- 18 {x}^{4}$

f) 4x2 . 5x3

$20 {x}^{5}$

g) 2y . (−7x)

$- 14xy$

h) −2x . (−3y)

$6xy$