1、若ab的平方=5,则a的3次方*b的6次方=

问题描述:

1、若ab的平方=5,则a的3次方*b的6次方=
2、若x^n=3,y^n=2,则-(xy)^3n的值^是
3、若x^=3,则(3x^3n)^2的值是
4、若A^3=-8a^6*b^9,则A=
5、若(-x^2*A)^3=x^6*y^3,则A=

(1)
a³b^6=(ab²)³=5³=125
(2)
-(xy)^3n
=-(xⁿ*yⁿ)³
=-(3*2)³
=-216
(3)
(3x^3n)^2
=9x^6n
=9(xⁿ)^6
=9*3^6
=3^8
=6561
(4)
A^3=-8a^6*b^9=(-2a²b³)³
A=-2a²b³
(5)
(-x^2*A)^3=x^6*y^3=(x²y)³
-A=y
A=-y