How do you complete the square x squared plus 12x equals 5?

Answer 1

x^2 + 12x = 5

x^2 + 12x + __ = 5 + __

x^2 + 12x + 36 = 5 + 36 (The 36 I got from taking half of 12 and then squaring that number (which is 6).)

(x + 6)^2 = 41

x + 6 = (the square root of 41)

x = (the square root of 41) - 6.

Hope that helped :)