Final answer:
Quadratic equations can be solved using the quadratic formula to find their zeros.
Step-by-step explanation:
Quadratic equations are second-order polynomials that can be solved to find their zeros. The solutions or roots of a quadratic equation can be calculated using the quadratic formula. The quadratic formula is x = (-b ± √(b^2-4ac))/(2a), where a, b, and c are the coefficients of the quadratic equation.
For example, if we have the quadratic equation 2x^2 - 5x + 3 = 0, then we can identify a = 2, b = -5, and c = 3. Plugging these values into the quadratic formula gives us the roots of the equation as x = 1.5 and x = 1.
So, for the given options, the correct choice for a calculator to find the zeros of a quadratic equation is A) Quadratic formula.