Directions: Simplify the following monomials (if possible).
17.) Subtract 9a from -15a
18.) From -9cd², subtract -2cd²

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Directions Simplify the following monomials if possible17 Subtract 9a from 15a18 From 9cd subtract 2cdANYONE PLEASE HELP ME I REALLY NEED THE ANSWER RIGHT NOW B class=