Quadratic Equation

Fast trick to solve Quadratic Equation

Factorize the equation : x2 + 6x -16

STEP-1

First of all multiply constant term and coefficient of x2 that is 1 so -16 * 1 = -16
6
-16
(-16 * 1)

STEP-2

Now split the coefficient of x that is 6 in two part so that their multiplication equals to -16 and their addition equals to 6 so
8 * (-2) = -16 ( Constant Term )
8 + (-2) = 6 ( Coefficient of middile term )

so the factor of the equation is-
(x + 8) (x -2)

If we have to calulate zeros then-
x + 8 = 0 or x -2 = 0
x = - 8 or x = 2