Factor completely - 5x2 + 10x - 15. - 5 (x2 - 2x + 3) - 1 (x2 - 10x + 15) - 5x (x2 - 2x + 3) - 5 (x2 - 2x - 3)

-5 (x² - 2x + 3)

Step-by-step explanation:

5 is a factor common to all of the coefficients. It is convenient to have the x² coefficient be positive in the factored form, so the result of factoring out - 5 is ...

... - 5 ((-5x²/-5) + (10x/-5) + (-15/-5)) = - 5 (x² - 2x + 3)

-5 (x² - 2x + 3) your welcome