Question
Find the polynomial having roots at $ \dfrac{ 7 }{ 3 } $ , $ -2 $ , $ 3 $ and $ 3 $ .
Answer
The polynomial generated from the given zeros is: $ P(x) = 3x^4-19x^3+19x^2+75x-126 $
Explanation
Step 1: Turn the zeros into factors:
| Zero | Factor |
| $ \dfrac{ 7 }{ 3 } $ | $ 3x-7 $ |
| $ -2 $ | $ x+2 $ |
| $ 3 $ | $ x-3 $ |
| $ 3 $ | $ x-3 $ |
Step 2: Multiply the factors together:
$$ P(x) = \left( 3x-7 \right) \cdot \left( x+2 \right) \cdot \left( x-3 \right) \cdot \left( x-3 \right) = 3x^4-19x^3+19x^2+75x-126 $$This page was created using
Polynomial From Roots Calculator