One solution of x^2-25=0 is 5 what is the other solution

Question

asked Sep 18, 2019 76.3k views

1 Answer

David Cournapeau · Answer 1 · 2019-09-23T09:33:49+0000

Add 25 to both sides:

x^2 = 25

Square root both sides.

When you square root a perfect square, you will get a plus/minus result:

$√(25) = \pm 5$

$x = \pm 5$

$\boxed{x = -5} \land \boxed{x = 5}$

The other solution to this answer is x = -5.