Solve for $ x$, $-\frac{1}{2}x^2 + 2x + 5 = 0$ I'm having trouble solving this equation for $x$:
$$-\frac{1}{2}x^2 + 2x + 5 = 0$$
What's the steps to take to solve it?
Thanks.

$$x^2-4x-10=0$$
$$x^2-2\cdot x\cdot2+2^2-2^2-10=0$$
$$x^2-2\cdot x\cdot2+2^2=4+10$$
$$(x-2)^2=14$$
$$x-2=\pm \sqrt{14}$$
$$x=2\pm \sqrt{14}$$
