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