How do you simplify x^3+(5x^2-6x-1)x+7x^2?

1 Answer
Jun 18, 2018

color(purple)(=> 6x^3 + x^2 - x

Explanation:

#x^3 + (5x^2 - 6x - 1)x + 7x^2

=> x^3 + 5x^3 - 6x^2 - x + 7x^2, "removing bracket"

=> x^3 + 5x^3 + 7x^2 - 6x^2 - x, " bringing like terms together"

color(purple)(=> 6x^3 + x^2 - x