Question

4. The sum of the roots of equation 3x2 - 9X + 5 = 0 is
_____​

Answer 1

Refer to the attached pic. for solution.

Answer:

Sum of roots of given equation is 3.

Answer 2

Answer:

The first term is,  3x2  its coefficient is  3 .

The middle term is,  -9x  its coefficient is  -9 .

The last term, "the constant", is  -5 

Step-1 : Multiply the coefficient of the first term by the constant   3 • -5 = -15 

Step-2 : Find two factors of  -15  whose sum equals the coefficient of the middle term, which is   -9 .

15   +   1   =   -14

 -5   +   3   =   -2    

 -3   +   5   =   2   

  -1   +   15   = 14