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Question
Find the polynomial having roots at 1 , 8 and −2 .
Answer
The polynomial generated from the given zeros is: P(x)=x3−7x2−10x+16
Explanation
Step 1: Turn the zeros into factors:
Zero | Factor |
1 | x−1 |
8 | x−8 |
−2 | x+2 |
Step 2: Multiply the factors together:
P(x)=(x−1)⋅(x−8)⋅(x+2)=x3−7x2−10x+16