Question

|х|+х+|х|•х=0
решите уравнение пж​

Answer 1

$1) x\geq 0\\x+x+x^2=0\\x^2+2x=0\\x(x+2)=0\\x=0\\x=-2<0\\2) x<0\\-x+x-x^2=0\\x^2=0\\x=0 \geq 0$

Ответ: х = 0