Problem 127 of 7
Identify where polynomial f(x)=(x+3)^2 is positive or negative.
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determine where function is positive/negative.
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Determine sign intervals from sign charts and graph interpretation.
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Solution
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1. List real zeros in order.
2. Choose a test point in each interval or use multiplicity behavior.
3. Record where the polynomial is positive, negative, or zero.
Use the worked steps, then substitute the final answer back into the original relationship to confirm it satisfies the prompt.
Changing sign at even-multiplicity zeros.