Question

PLSSS HURRY!!!!!!!!

Answer 1

Answer:

A) x=5 or -11

Step-by-step explanation:

The given equation is:

$(x+3)^2=64$

The most suitable method so solve this quadratic equation is the square root method.

We take square root of both sides to obtain:

$x+3=\pm \sqrt{64}$

$\implies x+3=\pm8$

$\implies x=-3\pm8$

We now split the plus or minus sign to get;

$x=-3-8\:,x=-3+8$

This simplifies to:

$x=-11\:,x=5$

The correct choice is A