ANSWER:

STEP-BY-STEP EXPLANATION:
We have the following expression:

In order to operate, we must first break the parentheses and then group similar terms, like this:
Answer:
The slope of the line through (−9,6) and (−6,−9) is −5
Step-by-step explanation:
Hope it helps
Answer:
11x² - y
Step-by-step explanation:
Step 1: Write out expression
10x² - y + x²
Step 2: Combine like terms
11x² - y
That is simplest form.
The answer to this question is C