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Question
Find the polynomial having roots at 3 , 7 and −4 .
Answer
The polynomial generated from the given zeros is: P(x)=x3−6x2−19x+84
Explanation
Step 1: Turn the zeros into factors:
Zero | Factor |
3 | x−3 |
7 | x−7 |
−4 | x+4 |
Step 2: Multiply the factors together:
P(x)=(x−3)⋅(x−7)⋅(x+4)=x3−6x2−19x+84