Question

What are the solutions to the equation x² = 256?

Select each correct answer.

Answer 1

Explanation:

To solve x^2 = 256, you can either graph it or solve it.

Graphing: Appears as a parabola that has roots at -16 and 16 on the x-axis

Solving: x^2 = 256

square root un-does 2nd power--> (square root of x^2) = (square root of 256)

x = +/- 16

Answer 2

16

Explanation:

16^2 = 256

16 x 16= 256

x=16