(1-х)(3-4х)-(2х+1)(2х-1)<11
3-4x-3x+4x^2-4x^2+1<11
-7x<11-4
-7x<7
x>-1
(-1; +бесконечность)
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(1-х)(3-4х)-(2х+1)(2х-1)<11
3-4x-3x+4x^2-4x^2+1<11
-7x<11-4
-7x<7
x>-1
(-1; +бесконечность)