Find the polynomial having roots at $- \frac{1}{5}$ , $- \frac{1}{3}$ and $1$ .

Answer

The polynomial generated from the given zeros is: $P (x) = 15 x^{3} - 7 x^{2} - 7 x - 1$

Explanation

Step 1: Turn the zeros into factors:

Zero	Factor
$- \frac{1}{5}$	$5 x + 1$
$- \frac{1}{3}$	$3 x + 1$
$1$	$x - 1$

Step 2: Multiply the factors together:

P (x) = (5 x + 1) \cdot (3 x + 1) \cdot (x - 1) = 15 x^{3} - 7 x^{2} - 7 x - 1

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Find the polynomial having roots at −51​ , −31​ and 1 .

The polynomial generated from the given zeros is: P(x)=15x3−7x2−7x−1

Find the polynomial having roots at $- \frac{1}{5}$ , $- \frac{1}{3}$ and $1$ .

The polynomial generated from the given zeros is: $P (x) = 15 x^{3} - 7 x^{2} - 7 x - 1$