1.а)1/(3xy)⁴ =(3xy)⁻⁴;
б)1/9a²b²=(3ab)⁻²;
в) 1/49m⁴n²=m⁻⁴(7n)⁻²;
г)1/64(p-q)²=(8(p-q))⁻².
2.a) 7p⁴/4q³=7p⁴·2⁻²·q⁻³=7·2⁻²·p⁴·q⁻³;
б) 3ac/(a+c)=3ac·(a+c)⁻¹;
в)(m+n)/36x³y²=(m+n)·6⁻²x⁻³y⁻²;
г)(x-y)²/8(x+y)³=(x-y)²·2⁻³(x-y)⁻³;
5)(a⁻²b/5m³x²)⁻³ :(0.2⁻¹m³b⁻²/a⁻²x⁻³)²=(a⁶b⁻³/5⁻³m⁻⁹x⁻⁶):(0.2⁻²m⁶b⁻⁴/a⁻⁴x⁻⁶)=
=a⁶⁻⁴b⁻³⁺⁴5³0.2²m⁹⁻⁶x⁶⁺⁶ =5³·0.2²·a²·b·m³·x¹²