Irreducible
Algebra
Level
2
Which of the following quadratics is irreducible over the rational numbers?
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1 solution
For the equation to be in irreducible form,
Discriminant (b^2-4ac) must be lesser than 0
Where 'a' is coefficient of x^2 ,'b' is coefficient
x and 'c' is the constant.
In second option b^2-4ac is equal to -56.
Therefore,it is irreducible