Question

2x.(x²-2x+5)
quanto da essa conta ?​

Answer 1

Vamos lá!

2x(x^2-2x+5) =

2xx^2+2x * -2x + 2x + 2x - 5 =

2x^3 + 2x * −2x + 2x * 5 =

2x^3 +(2 * −2 ) x^2 + 2x * 5  =

2x^3 - 4x^2 +2x * 5 =

2x^3 - 4x^2 + 10x .

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Resposta final :

2x³ - 4x² + 10x