Problem 128 of 7
Distinguish real zeros from complex zeros in graph sketching for (x-1)(x+1)(x^2+100).
Hints
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identify which roots appear as x-intercepts.
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Only real zeros appear on the real coordinate graph as x-intercepts.
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Solution
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1. Factor over real or complex numbers as needed.
2. Identify which roots are real.
3. Use only real roots as x-intercepts in the sketch.
Use the worked steps, then substitute the final answer back into the original relationship to confirm it satisfies the prompt.
Drawing x-intercepts for imaginary roots.