The first step for solving this expression is to multiply each term in the parenthesis by -9x.
-9x × 5 - 9x × (-2x)
Remember that multiplying tow negatives together equals a positive,, so the expression becomes the following:
-9x × 5 + 9x × 2x
Calculate the product of -9x × 5.
-45x + 9x × 2x
Lastly,, calculate the product of 9x × (-2x) to find your final answer.
-45x + 18x²
Let me know if you have any further questions.
:)
