One of the roots of equation $x^2-mx+5=0$ is $2$; find $m$.

Check whether $(x+2{)}^2=2x^2$ is a quadratic equation?

Find the value of discriminant for $2y^2-y+2=0$

Find the value of discriminant for $5m^2-m=0$

Find the value of discriminant for $\sqrt{5}{x}^2-x-\sqrt{5}=0$

Two roots of quadratic equation are given; frame the equation.

$10$ and $-10$