Completing the square It is often convenient to write an algebraic expression as a square plus another term. Use the Completing the Square Formula. On the left side of the equation the square root of x 23 2 is simply x 23.
To solve a x 2 b x c 0 by completing the square.
To complete the square the leading coefficient a a must equal 1. Completing the square It is often convenient to write an algebraic expression as a square plus another term. The other term is found by dividing the coefficient of x by 2 and squaring it. The coefficient in our case equals 4.