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mathematics quadratic formula. In elementary algebra the quadratic formula is a formula that provides the solution s to a quadratic equation. Solving quadratic equations by factoring This is the most popular way to solve quadratic equations.
It will show you how the quadratic formula that is widely used was developed. An algebraic equation or polynomial equation with degree 2 is said to be a quadratic equation. First divide both sides of the equation by ato get.
2x 0x 0andx - 4.
Because it is a second-order polynomial equation the fundamental theorem of algebra guarantees that it has two solutions. When b 2 4 a c 0 there is one real root. Calculator determines whether the discriminant b 2 4 a c is less than greater than or equal to 0. These solutions may be both real or both complex.