Question 173412
{{{x^2 + 3}}} = 52
{{{x^2 + 3-49}}} = 52-52
{{{x^2-49}}} = 0
(x-7)(x+7) Factor
x-7=0
x=7
and 
x+7=0
x=-7
.
.
Solutions: x = 7 and x = -7