Question

Solve the quadratic equation x2 + 12x + 20 = 0 by completing the square.

Answer 1

Get the 20 over to the right side out of the way.

Answer 2

Then divide the coefficient of x by 2, square that result and add that number to both sides

Answer 3

Then factor the left side.

Answer 4

Then take the square root of both sides.

Answer 5

Solve the resulting equation.

Answer 6

Well done Mertsj!

Answer 7

Not like you need the applause...