Question

Решите неравенство:*

(1-4х)^2-(8х-1)(2х+1)>0 

Answer 1

$(1-4x)^{2}-(8x-1)(2x+1)>0, 1-8x+16x^2-16x^2-8x+2x+1>0,-14x>-2,x<frac{1}{7}$

Answer 2

(1-4х)^2-(8х-1)(2х+1)>0

1-8x+16x^2-16x^2-8x+2x+1>0

-14x+2>0

x<2/14

x<1/7

Ответ: x<1/7