Question

Efetuando 5x² . (-9x) obeteremos

45x
14x³
14x
45x³

Answer 1

Resposta:

OLÁ

$5 {x}^{2} \times ( - 9x) \\ - (5 \times 9) \times ( {x}^{2} \times x) \\ - 45 \times ( {x}^{2} \times {x}^{1} ) \\ - 45 \times ( {x}^{2 + 1} ) \\ - 45 \times {x}^{3} \\ \boxed{ \blue{ = - 45 {x}^{3} }}$

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espero ter ajudado

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