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[[1]] is the zero of the polynomial $f (x) = 3 x + 1$ .

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answer is - 1 3.

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Detailed Solution

\frac{- 1}{3}

is the zero of the polynomial

f (x) = 3 x + 1 .

Given data,

f (x) = 3 x + 1

x − a

is a factor of a quadratic equation f(x), then f(a) = 0.
Considering

f x = 3x + 1

, and substituting

f x = 0.

Calculating the value of x.
Question Image

Therefore, the correct answer is

\frac{- 1}{3}

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