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x² - 10x + 21
Step-by-step explanation:
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the last one because 7*3=21 14*3=42 and 21*3=63
I would say you are more likely to have complex roots. If you think of graphs of polynomials, if you draw a function that doesn't pass through the x-axis, all roots are complex.
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Step-by-step explanation:
Step-by-step Explanation: