Question

m^7×m^5+-m^3^4-(-2)^4^3

明天要交功课了~头晕晕的,
①Z^4×Z^2×Z^-3
②M^5×M^6 / M^4×M^3
③（A^2 / A^5)^3
要一步一步的解答，直接给答案老师不接受的~

Answer 1

①Z^4×Z^2×Z^-3
=Z^[4+2+(-3)]
=Z^3
②M^5×M^6 / M^4×M^3
=[M^(5+6)] / [M^(4+3)]
=M^11 / M^7
=M^(11-7)
=M^4
③（A^2 / A^5)^3
=[A^(2-5)]^3
=[A^(-3)]^3
=A^(-9)