Finding Imaginary Roots for X2 –3X +C

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SUMMARY

The discussion centers on the quadratic equation X² - 3X + C and the challenge of finding its imaginary roots. Participants clarify that there is no real number C that allows the equation to have two distinct roots within the interval [-1, 1]. By applying the quadratic formula, it is established that the discriminant must be negative for the roots to be complex, which occurs when the expression under the square root is less than zero. Thus, the conclusion is that for any real C, the equation does not yield two distinct real roots in the specified range.

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muskan
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please see my question i can't dfind its imaginary roots .the equ is


X2 –3X +C,here 2 is the power of X and Cis constant we have to show that there exixts no reak number C for which the givev equation has two
distinct rootss in [-1,1]
i solve this by quadic formula but i got its real roots :zzz::zzz:
 
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How can you solve this by quadratic formula? There is no value of c given.
You can use the conditions in terms of c that would allow the equation to have real and distinct roots, and thereby show that there exists no such real c.
 
Last edited:
Using the quadratic formula, your answer should have c as well as other numbers inside a square root. The roots will be complex as long as the number inside the square root are negative.
 

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