Question

(81)^-4 / (729)^(2-x) = (9)^4x

Answer 1

Answer:

(81)^-4/(9×81)^(2-x) =(9)^4x

(81)^(-4-2+x)/(9^(2-x) = 9^4x

(81)^(-6+x)=9^(4x) × 9^(2-x)

9^(-12+2x) = 9^(4x +2-x)

9^(-12 + 2x) = 9^(3x+2)

-12+2x = 3x +2

x = -14 Ans