Question

if 3 to the power x-1 =9 and 4 to the power y+2=64 , then find the value of y/x-x/y​

Answer 1

Step-by-step explanation:

3^x-1 = 9

3^x-1 = (3)²

so, x-1 = 2

x = 3..

4^y+2 = 64

4^y+2 = (4)³

so, y+2 = 3

y = 1...

then y/x-x/y

= 1/3-3/1

= 1/3 - 3

= 1-9/3 (LCM)

= -8/3...