Question

计算下列各式.(1)0.125^6乘(-8)^7+(1/2-6)^0;(2)x^10•x^5+(x^3)^5+4(x^5

Answer 1

(1)0.125^6乘(-8)^7+(1/2-6)^0;

=（0.125×(-8)）^6×(-8)+1

=-8+1

=-7;

(2)x^10•x^5+(x^3)^5+4(x^5)^3;

=x^15+x^15+4x^15

=6x^15;

(3)13又1/3乘12又2/3;

=(13+1/3)×(13-1/3)

=13²-1/9

=169-1/9

=168又9分之8；

(4)(-1/2xy)•(4x-2xy^3 +1.

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