Question

решите неравенство (x+1)^2<x^2-2x

Answer 1

$(x+1)^2 textless x^2-2x\ x^2+2x+1 textless x^2-2x\ x^2+2x+1-x^2+2x textless 0\ 4x textless -1\ x textless - frac{1}{4}$