Question

(-5/7)^-4x (-5/7)^12={(-5/7)^3}^Z x(-5/7) ^-1 ,find the value of Z

Answer 1

Answer:

z= 3

Step-by-step explanation:

(-5/7)^-4+12=(-5/7)^3z+(-1)

(-5/7)^8=(-5/7)^3z-1

8=3z-1

8+1=3z

9=3z

z=9/3

z=3

hope it helps you