(1) 2(a-4)(a+3)-(2a-1)(a-1)
=2a²-2a-24-2a²+3a-1
=a-25
(2) 5(y-x)³×3x³(x-y)六次方
=5(y-x)³×3x³(y-x)六次方
=15x³(y-x)九次方
计算(1) 2(a-4)(a+3)-(2a-1)(a-1) (2) 5(y-x)³×3x³(x-y)六次方
计算(1) 2(a-4)(a+3)-(2a-1)(a-1) (2) 5(y-x)³×3x³(x-y)六次方
数学人气:732 ℃时间:2019-10-18 13:20:49
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