Answer:
The answer is option D, 4x2 − 13x + 14.
Step-by-step explanation:
Step 1: Distribute any coefficients.
In this case, there aren't any, so a 1 will be presumed in front of each set of parentheses. A positive 1 in front of the first, and a −1 in front of the second, as a result of the subtraction symbol.
The first set will remain unchanged, but the "(−3x2 + 5x − 9)" will be affected. This will give you:
x2 − 8x + 5 − 3x2 − 5x + 9
Step 2: Identify and combine like terms.
x2 and 3x2 will go together = 4x2
−8x and −5x will go together = −13x
And lastly, 5 and 9 will be added = 14
Therefore, your answer will be 4x2 − 13x + 14.
I hope this helps!
