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ExamsJEE MainMaths

Sachin and Rahul attempted to solve a quadratic equation. Sachin made a mistake in writing down the constant term and ended up in roots (4,3). Rahul made a mistake in writing down coefficient of x to get roots (3,2). The correct roots of equation are:

  1. 6, 1
  2. 4, 3
  3. -6, -1
  4. -4, -3

Correct answer: 6, 1

Solution

Sachin got the x-coefficient right, so the true sum of roots = 4+3 = 7. Rahul got the constant right, so the true product = 3*2 = 6. The correct equation is x^2-7x+6=0, whose roots are 6 and 1.

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