Question

Solve the following equation for x.

x2−47=17
List your answers separated by a comma, not using a ± sign and do not include x= in your answer.
Question 2 options:

3, 5

-9, 9

-8, 8

-30, 0

Answer 1

-8, 8

Explanation:

`{x}^(2) - 47 = 17 \\ \\ {x}^(2) = 17 + 47 \\ \\ {x}^(2) = 64 \\ \\ x = \pm√(64) \\ \\ x = \pm \: 8 \\ \\ x = - 8, \: \: 8`