-3y^3+24y^2-36y

To simplify the expression -3y^3 + 24y^2 - 36y, follow these steps:

Step 1: Write down the terms in descending order of the exponent.

-3y^3 + 24y^2 - 36y

Step 2: Look for common factors among the terms. In this case, the common factor is y, which can be factored out.

y(-3y^2 + 24y - 36)

Step 3: Simplify the expression inside the parentheses.

-3y^2 + 24y - 36

Now the expression is simplified as -3y^2 + 24y - 36.