Question
Find the polynomial having roots at $ 5 $ , $ 5 $ , $ -1 $ and $ 10 $ .
Answer
The polynomial generated from the given zeros is: $ P(x) = x^4-19x^3+105x^2-125x-250 $
Explanation
Step 1: Turn the zeros into factors:
| Zero | Factor |
| $ 5 $ | $ x-5 $ |
| $ 5 $ | $ x-5 $ |
| $ -1 $ | $ x+1 $ |
| $ 10 $ | $ x-10 $ |
Step 2: Multiply the factors together:
$$ P(x) = \left( x-5 \right) \cdot \left( x-5 \right) \cdot \left( x+1 \right) \cdot \left( x-10 \right) = x^4-19x^3+105x^2-125x-250 $$This page was created using
Polynomial From Roots Calculator