Solve V^2+2y=0

$$V ^ { 2 } + 2 y = 0$$

Solve for y

$$y=-\frac{V^{2}}{2}$$

Steps for Solving Linear Equation

Subtract V^{2} from both sides. Anything subtracted from zero gives its negation.

$$2y=-V^{2}$$

Divide both sides by 2.

$$\frac{2y}{2}=-\frac{V^{2}}{2}$$

Dividing by 2 undoes the multiplication by 2.

$$y=-\frac{V^{2}}{2}$$

Solve for V (complex solution)

$$V=-i\sqrt{2y}$$

$$V=i\sqrt{2y}$$

Solve for V

$$V=\sqrt{-2y}$$

$$V=-\sqrt{-2y}\text{, }y\leq 0$$