2(y-x)² 3(x-y)的3次幂?
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(1) 2(y-x)^2+3(x-y)^3
=2(x-y)^2+3(x-y)^3
=(x-y)^2[2+(x-y)]
=(x-y)^2(2+x-y)。
(2) 2(y-x)^2-3(x-y)^3
=2(x-y)^2-3(x-y)^3
=(x-y)^2[2-(x-y)]
=(x-y)^2(2-x+y)。
(3) 2(y-x)^2X3(x-y)^3
=2(x-y)^2X3(x-y)^3
=6(x-y)^5。
(4) 2(y-x)^2÷3(x-y)^3
=2(x-y)^2÷3(x-y)^3
=2/3(x-y)。
=2(x-y)^2+3(x-y)^3
=(x-y)^2[2+(x-y)]
=(x-y)^2(2+x-y)。
(2) 2(y-x)^2-3(x-y)^3
=2(x-y)^2-3(x-y)^3
=(x-y)^2[2-(x-y)]
=(x-y)^2(2-x+y)。
(3) 2(y-x)^2X3(x-y)^3
=2(x-y)^2X3(x-y)^3
=6(x-y)^5。
(4) 2(y-x)^2÷3(x-y)^3
=2(x-y)^2÷3(x-y)^3
=2/3(x-y)。
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