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Question
Find the polynomial having roots at 10 , 20 , 30 , 40 , 50 and 60 .
Answer
The polynomial generated from the given zeros is: P(x)=x6−210x5+17500x4−735000x3+16240000x2−176400000x+720000000
Explanation
Step 1: Turn the zeros into factors:
Zero | Factor |
10 | x−10 |
20 | x−20 |
30 | x−30 |
40 | x−40 |
50 | x−50 |
60 | x−60 |
Step 2: Multiply the factors together:
P(x)=(x−10)⋅(x−20)⋅(x−30)⋅(x−40)⋅(x−50)⋅(x−60)=x6−210x5+17500x4−735000x3+16240000x2−176400000x+720000000