Question

Упростите выражения:
1. z^7*z^13/z^19 * y^56*y^9/y^64=
2. s^4*s^3:s^6/s^9*s^8:s^17=
3. (a^2)^7*a^9:a^7=
4. (pg)^25:(pg)^5:(pg)^3=

Answer 1

1)=z^20/z^19*y^65/y^64=z*y
2)=s^4*s^3*s^17/s^9*s^8*s^6=s^24/s23=s
3)=a^14*a^2=a^16
4)=(pg)^17=p^17g^17