Question

What are the solutions for the given equation? X^2 + 4x + 16 = 0

Answer 1

Answer: x=−2(1−√​3​​​ı),−2(1+√​3​​​ı)

Explanation:

1. Let y=0 to find the x-intercept(s).

0=x^2+4x+16

2. Switch sides.

x^2+4x+16=0

3. Use the Quadratic Formula.

x=(​​​−4+4√​3​​​ı/2)​​,​​​(−4−4√​3​​​ı​​/2)

4. Simplify solutions.

x=−2(1−√​3​​​ı),−2(1+√​3​​​ı)