Question

Use the rules of equations and inverse operations to solve the equation. In your final answer, include all of your work.

4 - x^2 = -16

Answer 1

`x= +2√(5) or -2√(5)`

Explanation:

for the given equation,

`4 - x^(2) = -16`

using rules of equation and inverse operations as isolating x on one side of equation,

interchanging sides of equation we get,

`x^(2) =20`

`x= +√(20) or x= -√(20)`

`x= +2√(5)  or x= -2√(5)`