几道初一计算1.-3x(-y-xyz)2.(1/2x^3y^2)(-1/4x^2y^3)^23.(3a^2)^3·b^4-3(ab^2)^2·a^4

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几道初一计算1.-3x(-y-xyz)2.(1/2x^3y^2)(-1/4x^2y^3)^23.(3a^2)^3·b^4-3(ab^2)^2·a^4几道初一计算1.-3x(-y-xyz)2.(1/2x

几道初一计算1.-3x(-y-xyz)2.(1/2x^3y^2)(-1/4x^2y^3)^23.(3a^2)^3·b^4-3(ab^2)^2·a^4
几道初一计算
1.-3x(-y-xyz)
2.(1/2x^3y^2)(-1/4x^2y^3)^2
3.(3a^2)^3·b^4-3(ab^2)^2·a^4

几道初一计算1.-3x(-y-xyz)2.(1/2x^3y^2)(-1/4x^2y^3)^23.(3a^2)^3·b^4-3(ab^2)^2·a^4
3xy+3x^2yz
1/32x^7y^8
24a^6b^4