This video shows you how to get the quadratic equation for the quadratic function with roots. After watching this video any person over the age of twelve will know how to use. B2 4 ac 4 ac b2 The formula for h has a denominator of 2 a.
Then simplify it further.
The steps involve creating a perfect square trinomial isolating the trinomial and taking the square root of both sides. CCSSMathContentHSA-REIB4aUse the method of completing the square to transform any quadratic equation in xinto an equation of the form x p2 qthat has the Derive the quadratic formula from this form. Then we plug these coefficients in the formula. An alternative way of deriving the quadratic formula is via the method of Lagrange resolvents which is an early part of Galois theory.