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

Answer:

$x= +2\sqrt{5} or -2\sqrt{5}$

Step-by-step 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,

$x^{2} =20$

$x= +\sqrt{20} or x= -\sqrt{20}$

$x= +2\sqrt{5}  or x= -2\sqrt{5}$