Question

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2(x + y) + (x + y)

e

(4a + b) • (3b - 6a)

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Answer 1

D)

$2(x + y) + (x + y)$

$2x + 2y + x + y$

$\boxed{3x + 3y}$

E)

$(4a + b )\times (3b - 6a)$

$12ab - 24a + 3 {b}^{2} - 6ab$

$\boxed{3 {b}^{2} + 6ab - 24a }$

Espero ter ajudado!

Answer 2

Explicação passo-a-passo:

$2.(x + y) + x + y = \\ 2x + 2y + x + y = \\ 3x + 3y = 3.(x + y)$

e

$(4a + b) \times (3b - 6a) = 12ab - 24a {}^{2} + 3b {}^{2} - 6ab =$

-24a²+3b²+6ab