Solve x^2+30+750=0

$$x ^ { 2 } + 30 + 750 = 0$$

Solve for x (complex solution)

$$x=-2\sqrt{195}i\approx -0-27.928480088i$$

$$x=2\sqrt{195}i\approx 27.928480088i$$

Steps by Finding Square Root

Add 30 and 750 to get 780.

$$x^{2}+780=0$$

Subtract 780 from both sides. Anything subtracted from zero gives its negation.

$$x^{2}=-780$$

The equation is now solved.

$$x=2\sqrt{195}i x=-2\sqrt{195}i$$

Steps Using the Quadratic Formula

Add 30 and 750 to get 780.

$$x^{2}+780=0$$

This equation is in standard form: ax^{2}+bx+c=0. Substitute 1 for a, 0 for b, and 780 for c in the quadratic formula, \frac{-b±\sqrt{b^{2}-4ac}}{2a}.

$$x=\frac{0±\sqrt{0^{2}-4\times 780}}{2}$$

Square 0.

$$x=\frac{0±\sqrt{-4\times 780}}{2}$$

Multiply -4 times 780.

$$x=\frac{0±\sqrt{-3120}}{2}$$

Take the square root of -3120.

$$x=\frac{0±4\sqrt{195}i}{2}$$

Now solve the equation x=\frac{0±4\sqrt{195}i}{2} when ± is plus.

$$x=2\sqrt{195}i$$

Now solve the equation x=\frac{0±4\sqrt{195}i}{2} when ± is minus.

$$x=-2\sqrt{195}i$$

The equation is now solved.

$$x=2\sqrt{195}i x=-2\sqrt{195}i$$