(2x³y)²×(-2xy)+(2x³y)³÷(2x²)计算
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(2x³y)²×(-2xy)+(2x³y)³÷(2x²)计算
原式=4x^6y^2×(-2xy)+8x^9y^3÷(2x^2)
=-8x^7y^3+8x^7y^3
=0
=-8x^7y^3+8x^7y^3
=0
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