Answer:
Option 3rd is correct
x = -4 and x = 4
Step-by-step explanation:
Given the equation:
\(4x^2 = 64\)
Divide both sides by 4 we have;
\(x^2 = 16\)
Take square root both sides we have;
\(\sqrt{x^2} = \pm \sqrt{16}\)
Simplify:
\(x = \pm 4\)
Therefore, the solution for the given equation are:
x = -4 and x = 4
