Question

find the value of x if 1 upon 5 raised to the power -8 into 1 upon 5 raised to the power -4 is equal to 1 upon 5 raised to the power -4x​

Answer 1

to find x

1 1 1

_____ × ______ = _______

( 5)⁸ (5)⁴ (5)⁴x

(5)⁴

=> _____ = 1/x

(5)⁸+⁴

1

______

=> (5)⁴-⁸+⁴ = x

=> (5)⁰ = 1/x

1 = 1 /x

x = 1