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Question
Find the polynomial having roots at 32 , −21 and −1 .
Answer
The polynomial generated from the given zeros is: P(x)=6x3+5x2−3x−2
Explanation
Step 1: Turn the zeros into factors:
Zero | Factor |
32 | 3x−2 |
−21 | 2x+1 |
−1 | x+1 |
Step 2: Multiply the factors together:
P(x)=(3x−2)⋅(2x+1)⋅(x+1)=6x3+5x2−3x−2