(x-y)的三次方×(x-y)的六次方等于多少

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(x-y)的三次方×(x-y)的六次方等于多少


(x-y)³×(x-y)^6
=(x-y)^(3+6)
=(x-y)^9
(x-y)^9是(x-y)的九次方

(x-y)的三次方×(x-y)的六次方
=(x-y)(三次方+六次方)
=(x-y)九次方

(x-y)的三次方乘以(x-y)的六次方等于(x-y)的九次方