Solve 4x^2-9c=0

$$4 x ^ { 2 } - 9 c = 0$$

Solve for c

$$c=\frac{4x^{2}}{9}$$

Steps for Solving Linear Equation

Subtract 4x^{2} from both sides. Anything subtracted from zero gives its negation.

$$-9c=-4x^{2}$$

Divide both sides by -9.

$$\frac{-9c}{-9}=-\frac{4x^{2}}{-9}$$

Dividing by -9 undoes the multiplication by -9.

$$c=-\frac{4x^{2}}{-9}$$

Divide -4x^{2} by -9.

$$c=\frac{4x^{2}}{9}$$

Solve for x (complex solution)

$$x=-\frac{3\sqrt{c}}{2}$$

$$x=\frac{3\sqrt{c}}{2}$$

Solve for x

$$x=\frac{3\sqrt{c}}{2}$$

$$x=-\frac{3\sqrt{c}}{2}\text{, }c\geq 0$$