Question

Calcule:−(5x3+4x2−2x+1−(−5x3−4x2+7x−3−4x3−6x2−3))

Answer 1

        −(5x³ +4x² −2x +1−(−5x³ −4x²+7x−3− 4x³ −6x² −3)) =
        - (5x³ +4x² -2x + 1 + 5x³ +4x² - 7x + 3 + 4x³ + 6x² + 3) =
        - (14x³ + 14x² - 9x + 7) =
            14x³ - 14x² + 9x - 7

Answer 2

Resposta:

       −(5x³ +4x² −2x +1−(−5x³ −4x²+7x−3− 4x³ −6x² −3)) =

       - (5x³ +4x² -2x + 1 + 5x³ +4x² - 7x + 3 + 4x³ + 6x² + 3) =

       - (14x³ + 14x² - 9x + 7) =

           14x³ - 14x² + 9x - 7

Espero ter ajudado :)