How do you solve x^2 - 25 = 0?

Jun 12, 2015

${x}_{1} = + 5$
${x}_{2} = - 5$

Explanation:

Take $25$ to the right:
${x}^{2} = 25$ square root both sides to get:
$x = \pm \sqrt{25}$
So you get two possible solutions:
${x}_{1} = + 5$
${x}_{2} = - 5$

You can also use the Quadratic Formula but this is faster.