Solve x^2=350

$$x ^ { 2 } = 350$$

Solve for x

$$x=5\sqrt{14}\approx 18.708286934$$

$$x=-5\sqrt{14}\approx -18.708286934$$

Steps by Finding Square Root

Take the square root of both sides of the equation.

$$x=5\sqrt{14} x=-5\sqrt{14}$$

Steps Using the Quadratic Formula

Subtract 350 from both sides.

$$x^{2}-350=0$$

This equation is in standard form: ax^{2}+bx+c=0. Substitute 1 for a, 0 for b, and -350 for c in the quadratic formula, \frac{-b±\sqrt{b^{2}-4ac}}{2a}.

$$x=\frac{0±\sqrt{0^{2}-4\left(-350\right)}}{2}$$

Square 0.

$$x=\frac{0±\sqrt{-4\left(-350\right)}}{2}$$

Multiply -4 times -350.

$$x=\frac{0±\sqrt{1400}}{2}$$

Take the square root of 1400.

$$x=\frac{0±10\sqrt{14}}{2}$$

Now solve the equation x=\frac{0±10\sqrt{14}}{2} when ± is plus.

$$x=5\sqrt{14}$$

Now solve the equation x=\frac{0±10\sqrt{14}}{2} when ± is minus.

$$x=-5\sqrt{14}$$

The equation is now solved.

$$x=5\sqrt{14} x=-5\sqrt{14}$$