(-9x^3+3x^2-15x)?(-3x)

Is the ? divided by??

If so you are dividing a trinomial by a monomial

you just divide each term of the trinomial by the monomial

-9x^3 divided by -3x
3x^2 divided by -3x
-15x divided by -3x

Remember to divide the coefficients (numbers out in front)

Then for the x's with the exponents. Keep the x and subtract the exponents.
The first one will have x^2 in the answer.

Do you need more help or are you okay now?

To find the product of (-9x^3 + 3x^2 - 15x) and (-3x), we will use the distributive property of multiplication over addition.

First, distribute the -3x to each term in the parentheses:

(-3x)(-9x^3) + (-3x)(3x^2) + (-3x)(-15x)

This simplifies to:

27x^4 - 9x^3 - 45x^2

So, the product of (-9x^3 + 3x^2 - 15x) and (-3x) is 27x^4 - 9x^3 - 45x^2.