Answer:-
To use the quadratic formula on a TI-84, first, enter the quadratic equation in the form ???? ???? 2 + ???? ???? + ???? = 0 ax 2 +bx+c=0. Then, press the "Y=" button and enter the equation as ???? ???? 2 + ???? ???? + ???? ax 2 +bx+c in the Y1 line. For the quadratic formula, press the "ALPHA" button, followed by the "WINDOW" key to input values for ???? a, ???? b, and ???? c. Use the "CALC" button, select the "Solver," and input values. The calculator will solve for the variable ???? x. This makes solving quadratic equations fast and efficient.
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