Simply (4x^3-7x^2+9x+7)+(7x^2-8x-5)-(2x^3-10x+9x+2)
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Answer:
2x³+2x
Step-by-step explanation:
4x³-7x²+9x+7+7x²-8x-5-2x³+10x-9x-2
4x³-2x³+2x
2x³+2x
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