Question

20 | Efetue no caderno cada multiplicação.
a) 3ab (2a+4b)
b) (2x + y)3x²
c) - y. (y2 - 2y)
d) 3(2x³ – x² + 2x + 1)
e) - 2x(x² – 3x + 2)
f) (a² + 2ab + b²) 3a²​

Answer 1

a) 3ab (2a+4b) = 6a²b+12ab²

b) (2x + y)3x² = 6x³+3x²y

c) - y. (y² - 2y) = -y³+2y²

d) 3(2x³ – x² + 2x + 1) = 6x³-3x²+6x+3

e) - 2x(x² – 3x + 2) = -2x³+6x²-4x

f) (a² + 2ab + b²) 3a² = 3a⁴+6a³b+3a²b²

Boa tarde ❤️

08/06