The answer is: [C]: " (x - 4) " .
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" (x+9)(x-4) = x² - 4x + 9x - 36 = x² + 5x - 36 " .
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Answer:
<u>Divide by -8</u> on both sides. <u>Flip</u> the inequality.
Step-by-step explanation:
You didn't provide any answer choices, but here's how you would solve this:

Notice that because we divided by a negative, the inequality sign must flip in the other direction!
Write out all the pairs of numbers which can be multiplied to produce c.
Add each pair of numbers to find a pair that produce b when added. ...
If b > 0, then the factored form of the trinomial is (x + d )(x + e). ...
Check: The binomials, when multiplied, should equal the original trinomial.