17.Subtract:2x²+9xy²-4x+3from5xy²-6x²+7x-9
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Answer:
-4xy²-8x²+11x-12
Step-by-step explanation:
= (5xy²-6x²+7x-9) -(9xy²+2x²-4x+3)
= -4xy²-8x²+11x-12 Answer
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