Question

Find the solutions to the quadratic equation below by completing the square.

x2 - 8x - 7 = 0

Answer 1

x=4-
`√(23)`, x=4+
`√(23)`

Explanation:

(x^2-8x+16)-16-7=0

(x-4)^2=23

x=4-
`√(23)`, x=4+
`√(23)`