Question

show that polynomial xsquare +2x+7 has no zeros

Answer 1

Heya !!!




P(X) = X² + 2X + 7



Here,



A = 1 , B = 2 and C = 7





Discriminant (D) = B² - 4AC





=> (2)² - 4 × 1 × 7





=> 4 - 28




=> -24 is smaller than 0.





Since,


Discriminant of the given equation is smaller than 0 .So the given equation has no real zeroes.




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