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(-3xy²)³+(-2x²)(-xy²) 化简
(-5a^6)^2+(-2a^3)^3*a^3
不好意思,写错了。是
(-3xy²)³+(-2x²y^4)(-xy²)
(-3xy²)³+(-3x²y^4)(-xy²)
人气:257 ℃ 时间:2020-03-28 09:47:37
解答
(-3xy²)³+(-2x²)(-xy²)
=-27x³y6次方+2x³y²
(-5a^6)^2+(-2a^3)^3*a^3
=25a^12-8a^9*a^3
=25a^12-8a^12
=17a^12
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