Question

b) x (2x - 10)-5x(x-2)
c) (x + 2)(x+3)-2 (x+4)​

Answer 1

Explicação passo-a-passo:

b) x (2x - 10)-5x(x-2)

    2x² - 10x -5x² +10x =

    -3x²

c) (x + 2)(x+3)-2 (x+4)​

   3x + 9 - 2 =

   3x + 7