Question

Can anyone solve this? Thanks

Answer 1

Answer: a= 3r^6-b b=0

Explanation:

take the root of both sides and solve

Answer 2

a= 3 and b = 6

Explanation:

(a r^b)^4 = 81 r^24

(r^b)^4 = r^24

Therefore b*4 = 24

so b = 6

and a^4 = 81

so a = 3

Answer a = 3 and b = 6