Question

Solve by completing the square. x^2+12x-8=0

Answer 1

you first transform the equation to the form

(x + a)^2 + b = 0

Answer 2

To complete the square:
Move the "non X" term to the right:
x^2+12x-8=0
x² + 12x = 8

Divide the equation by the coefficient of X² which in this case is 1 so there's no change
x² + 12x = 8

Now for "completing the square" we:
take the coefficient of X which is
12
divide that by 2
6
square that number
36
then add it to both sides of the equation
x² + 12x +36 = 8 +36
Take the square root of BOTH sides of the equation
(x+6) = sqrt(44)
x = sqrt(38)
x = 6.164414003
x = -6.164414003

Answer 3

Thanks bro

Answer 4

u r welcome