7×2-14=0

Add 14 to both sides of the equation.

7×2=14

Divide each term in 7×2=14 by 7.

7×27=147

Cancel the common factor of 7.

Cancel the common factor.

7×27=147

Divide x2 by 1.

x2=147

x2=147

Divide 14 by 7.

x2=2

x2=2

Take the square root of both sides of the equation to eliminate the exponent on the left side.

x=±2

First, use the positive value of the ± to find the first solution.

x=2

Next, use the negative value of the ± to find the second solution.

x=-2

The complete solution is the result of both the positive and negative portions of the solution.

x=2,-2

x=2,-2

The result can be shown in multiple forms.

Exact Form:

x=2,-2

Decimal Form:

x=1.41421356…,-1.41421356…

Solve Using the Square Root Property 7x^2-14=0