1.若x^m•x^2m=2,求x^9m的值.2,若(9^m+1)^2=3^16,求正整数m.1.若x^m•x^2m=2,求x^9m的值.2,若(9^m+1)^2=3^16,求正整数m.在6点之前写好,

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1.若x^m•x^2m=2,求x^9m的值.2,若(9^m+1)^2=3^16,求正整数m.1.若x^m•x^2m=2,求x^9m的值.2,若(9^m+1)^2=3^16,求正

1.若x^m•x^2m=2,求x^9m的值.2,若(9^m+1)^2=3^16,求正整数m.1.若x^m•x^2m=2,求x^9m的值.2,若(9^m+1)^2=3^16,求正整数m.在6点之前写好,
1.若x^m•x^2m=2,求x^9m的值.2,若(9^m+1)^2=3^16,求正整数m.
1.若x^m•x^2m=2,求x^9m的值.
2,若(9^m+1)^2=3^16,求正整数m.
在6点之前写好,

1.若x^m•x^2m=2,求x^9m的值.2,若(9^m+1)^2=3^16,求正整数m.1.若x^m•x^2m=2,求x^9m的值.2,若(9^m+1)^2=3^16,求正整数m.在6点之前写好,
1,x^m•x^2m=x^3m,因为x^9m=(x^3m)^3,所以x^9m=2^3=8
2,3^16=(3^8)^2,所以9^m+1=3^8,因为9=3^2所以9^m+1=3^(2m+2)
所以2m+2=8,所以m=3