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Question

For the expression 2x2 7x5, the roots are α and β, then the value of α+β is
  1. 3.5
  2. 2.5
  3. 1.5
  4. 4.5


Solution

The correct option is A 3.5
In the given equation a=2, b=7  and c=5
α+β=ba
=(7)2=3.5

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