How to derive quadratic formula ?

Quadratic Equation: [latex s=3]x = \frac{{ – b \pm \sqrt {b^2 – 4ac} }}{{2a}}[/latex] Now we will see how to make that formula. Basically quadratic equation is a second order polynomial with 3 coefficients. The quadratic equation is given by: [latex s=2]ax^2+bx+c=0[/latex] Divide the equation with ‘a’ [latex s=3]\frac{ax^2}{a}+\frac{bx}{a}+\frac{c}{a}=0[/latex] [latex s=3]x^2+\frac{bx}{a}+\frac{c}{a}=0[/latex] [latex s=3]x^2+\frac{bx}{a}=-\frac{c}{a}[/latex] Now add     […]