Question

What are the solutions of this quadratic equation?

x^2 + 4 = 8x + 5

Answer 1

x=4±sqrt(17)

Explanation:

x^2+4=8x+5

x^2-8x-1=0

Use quadratic formula

x=(8±sqrt(64+4))/2

Simplify it

x=4±sqrt(17)