Quadratic Equations

Quadratic Equations

1. QUADRATIC EQUATIONS (degree 2)

   • GENERAL FORMULA ax²+bx+c=0
     • METHOD 1
       • FACTORISATION
         • Solution of Quadratic Equations by Factorisation
           • If we can factorise ax²+bx+c=0, the value of ‘a’ cannot be zero,into a product of two linear factors then the roots of quadratic equation ax²+bx+c=0 can be found by equating each factor to zero
     • Solutions
       • Method 2
         • Completing Square
           • Solution of Quadratic Equations by completing the square
             • A quadratic equation can also be solved by thr method of completing the square
     • Method 3
       • Quadratic Formula
         • Nature Of Roots
           • Discriminate (D)
             • D>0 real distinct roots
             • D=0 Equal Roots
             • D<0 No Real Roots
             • b²-4ac
         • -b±√b²-4ac/2a