Question

What are the solutions to the quadratic equation x2 – 16 = 0?

O x = 2 and x = -2
x = 4 and x = -4
x = 8 and x = -8
x = 16 and x = -16

Answer 1

Answer: x=8 and x=-8

Explanation:

To find the solutions of the quadratic equation, you want to factor it and set it equal to 0.

x²-16=0

(x+8)(x-8)=0

x+8=0

x=-8

x-8=0

x=8

Now that we have factored and set the factors equal to 0, we found that the solutions are x=-8 and x=8.