Algebra

Hey friends kiran is here,
  Today we learnt about sum of roots and product of roots. many students pasted the information about imajinari number . mr. p like it very much and gave them bonus points. they explained briefly mr. p also show us alrebra refresher .
          The sum of roots formul :-
         
          -b+(b^2-4ac)^1/2     +  -b-(b^2-4ac)^1/2
              / 2a                                  /2a

  The product roots formulae:-

            {-b+(b^2-4ac)^1/2   {-b-(b^2-4ac)
              /2a}                           /2a}


Slove each equation  and  complete the table :-

Equation               Roots             Sum of roots      Product of roots     Value of a    Value of b    value of c

1. x^2+5x+6 = 0       x = -2, -3             -5                        6                        1                   5                  6


2. x^2-9x+20 = 0     x = 4 , -5             - 9                       -20                     1                    -9               20


3. x^2 +8x = 0           x = 0 , -8            -8                        0                        1                      8                 0


The algebra assignment is due november 25.


have a great evening  
 bye friends