Question

Q)
x^ (-1/4) = 128 x^-2
Find the value of x​

Answer 1

Answer:

x=16

Step-by-step explanation:

x^ (-1/4) = 128 x^-2

Dividing both sides by

x^(-1/4)/x^-2=128

x^(-1/4+2)=2^7

x^(7/4) =2^7

Taking log

7/4 log x=7 log 2

log x=7*4/7 log 2

log x= 4 log 2

log x= log 2^4

x=2^4=16