已知x^2m=2,y^n=3.求(1)(x^2)^2m;(2)x^6my^3n
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已知x^2m=2,y^n=3.求(1)(x^2)^2m;(2)x^6my^3n已知x^2m=2,y^n=3.求(1)(x^2)^2m;(2)x^6my^3n已知x^2m=2,y^n=3.求(1)(x^
已知x^2m=2,y^n=3.求(1)(x^2)^2m;(2)x^6my^3n
已知x^2m=2,y^n=3.求(1)(x^2)^2m;(2)x^6my^3n
已知x^2m=2,y^n=3.求(1)(x^2)^2m;(2)x^6my^3n
解
x^2m=2,y^n=3
∴(x²)^2m
=(x^2m)²
=2²
=4
x^6m×y^3n
=(x^2m×y^n)³
=(2×3)³
=6³
=216
(1)(x^2)^2m;
=(x^2m)^2
=2^2
=4
(2)x^6my^3n
=[(x^2m)^3]*[(y^n)^3]
=(2^3)*(3^3)
=8*27
=216
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