Question

2- Efetue as Multiplicações
A) 3x(X²-2x+3)

B) 2(a²+3ª-4)

C) X²Y(x²-3xy²+y²)

D) -3a³(a⁴-2a+1)

"Boa sorte"

Answer 1

$a = {3x }^{2} + 6x + 9$
$b = {2a}^{2} + 2x {3}^{a} - 8$
$c = {x}^{4} y - 3 {x}^{3} {y}^{3} + {x}^{2} {y}^{3}$
$d = - 3 {a}^{7} + 6 {a}^{4} - 3 {a}^{3}$