If $α, β, γ$ be the zeroes of the expression $a x^{3} + b x^{2} + 4 x + 7$ , find the value of $α β + β γ + α γ$

- 4

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\frac{4}{a}

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- \frac{4}{a}

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a

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Solution

The correct option is C $\frac{4}{a}$
Given equation is $a x^{3} + b x^{2} + 4 x + 7$ . Since $α, β$ and $γ$ are the roots of the polynomial, by applying the relation between roots and coefficients,
$α β + β γ + α γ = \frac{4}{a}$

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