(5x-2)-15> (4x-10)^2+9x^2 решить

(5x-2)^2-15>(4x-10)^2+9x^2 25x^2-20x+4-15>16x^2-80x+100+9x^2 25x^2-20x-11>25x^2-80x+100 25x^2-25x^2-20x+80x-11-100>0 60x-111>0 60x>111 x>1, 85 5x-2-15>(4x-10)^2+9x^2 5x-17> 16x^2-80x+100+9x^2 5x-17> 25x^2-80x+100 -25x^2+5x+80x-17-100>0 25x^2-85x+17 <0 D=(-85)^2-4*25*117=7225-1170=нет корней