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Question
Find the polynomial having roots at −9 and −5 .
Answer
The polynomial generated from the given zeros is: P(x)=x2+14x+45
Explanation
Step 1: Turn the zeros into factors:
Zero | Factor |
−9 | x+9 |
−5 | x+5 |
Step 2: Multiply the factors together:
P(x)=(x+9)⋅(x+5)=x2+14x+45