Question

6x^2-5x>=-1/4x^2-1 алгебра

Answer 1

$6x^2-5x geq - frac{1}{4}x^2 -1\6x^2-5x+frac{1}{4}x^2+1 geq 0\6,25x^2-5x+1 geq 0\x= frac{5 frac{+}{}0 }{6.25*2}= frac{2}{5}=0.4$