Set the original equation equal to zero and enter the resulting equation into the Solver. After providing these to the program it will display the solutions on the screen. However sometimes the quadratic is too difficult tofactor so we use the quadratic formula whichis x equals negative b plus or minus the squareroot of b squared minus 4ac all over 2a.
Students graph a quadratic function that models the shape of a bridge trestle and then solve the related quadratic equation by completing the square.
The program will prompt you to enter the coefficients a b and c. If you have the TI Graph Link software you can. Make the First Line. Enter the left side of the equation to be solved in E1.