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Question
Find the polynomial having roots at 7 , 5 , 4 , 2 , 1 and 0 .
Answer
The polynomial generated from the given zeros is: P(x)=x6−19x5+133x4−421x3+586x2−280x
Explanation
Step 1: Turn the zeros into factors:
Zero | Factor |
7 | x−7 |
5 | x−5 |
4 | x−4 |
2 | x−2 |
1 | x−1 |
0 | x |
Step 2: Multiply the factors together:
P(x)=(x−7)⋅(x−5)⋅(x−4)⋅(x−2)⋅(x−1)⋅x=x6−19x5+133x4−421x3+586x2−280x