因式分解:2m^3-32m因式分解:1.2m^3-32m2.a^2(x-y)+b^2(y-x)
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因式分解:2m^3-32m因式分解:1.2m^3-32m2.a^2(x-y)+b^2(y-x)
因式分解:2m^3-32m
因式分解:
1.2m^3-32m
2.a^2(x-y)+b^2(y-x)
因式分解:2m^3-32m因式分解:1.2m^3-32m2.a^2(x-y)+b^2(y-x)
(1)2m^3-32m
原式=2m(m^2-16)
=2m(m+4)(m-4)
(2)a^2(x-y)+b^2(y-x)
原式=a^2(x-y)-b^2(x-y)
=(x-y)(a^2-b^2)
=(x-y)(a+b)(a-b)
好了~
1,2m(m-4)(m+4)
2,(x-y)(a-b)(a+b)
1.原式=2m(m²-16)
=2m(m+8)(m-8)
2.原式=(x-y)(a²-b²)
=(x-y)(a+b)(a-b)
1.2m^3-32m
=2m(m²-16)
=2m(m+4)(m-4)
2.a^2(x-y)+b^2(y-x)
= a^2(x-y)-b^2(x-y)
=(x-y)(a²-b²)
=(x-y)(a+b)(a-b)
1.2m^3-32m
=2m(m^2-16)
=2m(m+4)(m-4)
2.a^2(x-y)+b^2(y-x)
=a^2(x-y)-b^2(x-y)
=(x-y)(a^2-b^2)
=(x-y)(a+b)(a-b)