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CGP EDU Academic Team
Published on: August 12, 2026
If ac > b 2 then expression ( α 2 ax 2 + 2b α x + c) 3 , where a, b, c ∈ R and α∈ R + is-
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(a, b, d)
Discriminate of 
is
Now,
If 
then parabola upward, so
If a < 0 then parabola downward so
If 
then value of expression 
is negative.
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