Set the equation to equal 0:
-x^2 +5 = 0
Subtract 5 from both sides:
-x^2 = -5
Multiply each side by -1:
x^2 = 5
Take the square root of both sides:
x = √5
Complete the solution by having both positive and negative:
x = √5 and x = -√5
Ordered pair: (√5,-√5)