Answer:
(x + 9)(x4)
Step-by-step explanation:

So, the possible side
lengths of the quilt are (x + 9) and (x + 4) units.
The question is asking us to find the sum. To do this, let's first write the original equation and then take it from there.

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Use distributive property:
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Combine Like Terms:

Therefore, the answer to your question is
-4x² + 3x + 4. Hope this helps and have a fantastic day!
Answer:
the answer is 58 your welcome