计算题(初二的,要清楚过程))(a^3)^2×a÷(-a^2)^3(2)102×98(3)(27a^3x^2-6abx)÷3ax(4)(y+2x)×(1-y)+(x+y)^2

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计算题(初二的,要清楚过程))(a^3)^2×a÷(-a^2)^3(2)102×98(3)(27a^3x^2-6abx)÷3ax(4)(y+2x)×(1-y)+(x+y)^2计算题(初二的,要清楚过程

计算题(初二的,要清楚过程))(a^3)^2×a÷(-a^2)^3(2)102×98(3)(27a^3x^2-6abx)÷3ax(4)(y+2x)×(1-y)+(x+y)^2
计算题(初二的,要清楚过程)
)(a^3)^2×a÷(-a^2)^3
(2)102×98
(3)(27a^3x^2-6abx)÷3ax
(4)(y+2x)×(1-y)+(x+y)^2

计算题(初二的,要清楚过程))(a^3)^2×a÷(-a^2)^3(2)102×98(3)(27a^3x^2-6abx)÷3ax(4)(y+2x)×(1-y)+(x+y)^2
(!)(a^3)^2×a÷(-a^2)^3
=a^6*a÷(-a^6)
=-a
(2)102×98
=(100+2)(100-2)
=100^2-2^2
=10000-4=9996
(3)(27a^3x^2-6abx)÷3ax
=27a^3x^2÷3ax-6abx÷3ax
=9a^2x-2b
(4)(y+2x)×(1-y)+(x+y)^2
=y-y^2+2x-2xy+x^2+2xy+y^2
=x^2+2x+y