: Evaluate (2x²y – 5y3 + 12) - (x²y + 2x3 – 7)
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Answer:
x^2y-5y^3-2x^3+5
Step-by-step explanation:
(2x^2y-5y^3+12)-(x^2y+2x^3-7)
= 2x^2y-x^2y-5y^3-2x^3+12-7
= x^2y-5y^3-2x^3+5
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