Question

the one with good maths will surely answer ​

Answer 1

answer is 5

refer to attachment

Answer 2

Answer:

(-6) ^3-x × (-6)^5=(-6) ³

since base are same ,power can add

(-6)^8-x=(-6)³

base are same than power also same

by equating power

8-x =3

x=8-3

x=5