Question

(x^4)^6-(x^3)^8=?a^2m .a^m+2.（-a^m-1）^2=?

Answer 1

(x^4)^6-(x^3)^8

=x^24-x^24

=0;

a^2m .a^m+2.（-a^m-1）^2

=a^(2m+m+2+2m-2)

=a^(5m);

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