作业帮若x^n=3,x^m=2,则x^m+n=______,x^2m=3n=______?
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若x^n=3,x^m=2,则x^m+n=______,x^2m=3n=______?
若x^n=3,x^m=2,则x^m+n=______,x^2m=3n=______?
若x^n=3,x^m=2,则x^m+n=______,x^2m=3n=______?
x^(m+n)
=x^m×x^n
=2×3
=6
x^(2m+3n)
=x^(2m)×x^(3n)
=(x^m)²×(x^n)³
=2²×3³
=4×27
=108
x^(2m+3n)=x^m*x^m*x^n*x^n*x^n=2*2*3*3*3=108
x^m+n=x^n X x^m=3x2=6
x^2m+3n=(x^m)^2 X (x^n)^3=2^2X3^3=108
若x^m=6,x^n=9,则(2x^3m*x^2n) / (x^m*x^n)^2*x^n
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若x^n=3,x^m=2,则x^m+n=______,x^2m=3n=______?