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Comment on Rational Sum of Solutions
Solved.
I would have chosen -1 as the
That's correct. -1 is only
That's correct. -1 is only one of the two possible solutions. The other is -3. So, we must add the two solutions to get -1 + 3 = 2
Hi Brent,
Can we after seeing the value of b(square) - 4ac >0,
Directly deduce that since it is a quadratic equation and will be having two solutions (for such type of questions) ?
That's true, but in order to
That's true, but in order to determine the sum, you still need to solve the equation.
We could use also the Vieta's
Yes, that's absolutely
Yes, that's absolutely correct. Good idea.
Cheers,
Brent