Find the polynomial having roots at $1$ , $- 2$ and $4$ .

Answer

The polynomial generated from the given zeros is: $P (x) = x^{3} - 3 x^{2} - 6 x + 8$

Explanation

Step 1: Turn the zeros into factors:

Zero	Factor
$1$	$x - 1$
$- 2$	$x + 2$
$4$	$x - 4$

Step 2: Multiply the factors together:

P (x) = (x - 1) \cdot (x + 2) \cdot (x - 4) = x^{3} - 3 x^{2} - 6 x + 8

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Find the polynomial having roots at 1 , −2 and 4 .

The polynomial generated from the given zeros is: P(x)=x3−3x2−6x+8

Find the polynomial having roots at $1$ , $- 2$ and $4$ .

The polynomial generated from the given zeros is: $P (x) = x^{3} - 3 x^{2} - 6 x + 8$