Question

b (a²-1) (2a²-2a+1)​

Answer 1

Resposta:

b)

$( {a}^{2} - 1)(2 {a}^{2} - 2a + 1) = \\ \\ 2 {a}^{2 + 2} - 2 {a}^{2 + 1} + {a}^{2} - 2 {a}^{2} + 2a - 1 = \\ \\ 2 {a}^{4} - 2 {a}^{3} - {a}^{2} \:+\:2a\: - 1$

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