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Question

Find the value of k for which the equation, 2x2+3x+k=0 distinct real roots.

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Solution

Given :The roots are real and distinct

DiscriminantΔ=b24ac>0

where a=2,b=3,c=k

Δ=324×2×k>0
98k>0

8k>9

8k<9

k<98

k(,98)

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