X^2-12x+16=0

Question

Whats the solution, solved by using the quadratic formula

Answer 1

X^2-12x+16=0

      - b +/- sqrt( b^2 - 4ac)
x =  ---------------------------
                  2a

        -(-12)+/-sqrt(12^2 - 4*16

x = --------------------------------

                              2

              12 +/- sqrt(144 - 56)

x = --------------------------------

                         2

        12+/- sqrt88       12+/.- sqrt(4*22) 

x = ---------------- = --------------------

                 2                              2

x = (12 +/-2sqrt22}/2

x =  6 +sqrt22 and x = 6 - sqrt22