When b 2 4 a c 0 there are two real roots. Then we plug these coefficients in the formula. Quadratic equations are also needed when studying lenses and curved mirrors.
In this unit we learn how to solve quadratic equations and how to analyze and graph quadratic functions.
They are the numerical coefficients of the quadratic equation theyve given you to solve. Small x dfrac -b pm sqrt b2 - 4acphantom big 2a x 2ab b2 4ac. Solve an equation of the form a x 2 b x c 0 by using the quadratic formula. A x 2 b x c 0 Need more problem types.