Suppose you are a solving a quadratic equation and this is your work so far... x ^ 2 - 12x - 28 = 0; x = (12 plus/minus sqrt((- 12) ^ 2 - 4(1)(- 28)))/(2(1)); x = (12 plus/minus sqrt(144 + 112))/2; x = (12 plus/minus sqrt(256))/2 keep going! What will the solutions to this quadratic equation be? x = - 1 and x = 13; x = - 2 and x = 14; x = 133.5 and x = - 122.5; x = 2 and x = - 14
The correct solutions to this quadratic equation are:
x = -2 and x = 14