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Question
Find the polynomial having roots at 2 , 9 and −2 .
Answer
The polynomial generated from the given zeros is: P(x)=x3−9x2−4x+36
Explanation
Step 1: Turn the zeros into factors:
Zero | Factor |
2 | x−2 |
9 | x−9 |
−2 | x+2 |
Step 2: Multiply the factors together:
P(x)=(x−2)⋅(x−9)⋅(x+2)=x3−9x2−4x+36