Answer :

Answer: -2x + 5x^2

Step-by-step explanation:

3x + 6x^2 - 5x - x^2 = x(3-5) + x^2(6-1) = -2x + 5x^2

Answer:

Answer = x ( 5x - 2)

Step-by-step explanation:

3x + 6x² - 5x - x²

Collect like terms

= 6x² - x² - 5x + 3x

= 5x² - 2x

= x ( 5x - 2)