Question

Решите неравенство (12)^1-4x меньше 132

Answer 1

$(frac{1}{2})^{1-4x}<frac{1}{32}$
$(frac{1}{2})^{1-4x}<(frac{1}{2})^5$
$0<frac{1}{2}<1; 1-4x>5$
$1-5>4x$
$-4>4x$
$4x<-4$
$x<-1$
x є $(-infty;-1)$