1.

For any quadratic expression y=x2−bx+c, if the sum of it's roots is equal to the product of it's roots and y≥−8 ∀ x∈R. Then find the range of b.

Answer»

For any quadratic expression y=x2bx+c, if the sum of it's roots is equal to the product of it's roots and y8 xR. Then find the range of b.



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