Question

$3^{5x+2} \ \textless \ 81^{x-1}$

Answer 1

$3^{5x+2} < 81^{x-1}$

$3^{5x+2} < 3^{4x-4}$

$5x+2 < 4x - 4$

$5x - 4x < - 4 - 2$

$x < - 6$
x ∈ ( - ∞ ; - 6)