The number of real solutions of x^2-3|x|+2=0 is

Question

The number of real solutions of $x^2-3|x|+2=0$ is

Accepted Answer

$|x|^2-3|x|+2=0 \implies (|x|-2)(|x|-1)=0 \implies |x|=1,2 \implies x=\pm1,\pm2$.

Number of solutions: 4.

Solutions · 1