Question

6. Find the sum and product of the roots of the following equation.
a) 3x2 + 7x + 1 = 0
b) 2x2 - 2x + 3 = 0​

Answer 1

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Answer 2

Answer:

(a) -1

(b) -3.5

Step-by-step explanation:

(a)   3x2 + 7x + 1 = 0

          6+ 1 + 7x  = 0

              7 + 7x  = 0

                    7x  = 0 - 7

                     7x = -7

                      x = -7

                             7

                       x = -1

(b) 2x2 - 2x + 3 = 0

        4 + 3 - 2x = 0

              7 - 2x = 0

                  -2x = 0 - 7

                     x = -7

                            2

                       x = -3.5