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... x-axis (at a3 ) and then rises again. So on either side of a3 the values of p(x) are positive. Nevertheless, an analysis of how p(x) crosses the x-axis is enough to give us some clue on how to solve inequalities of the form p(x) ≥ 0 or p(x) > 0. With this idea in mind, the steps are devised when sol ...
... x-axis (at a3 ) and then rises again. So on either side of a3 the values of p(x) are positive. Nevertheless, an analysis of how p(x) crosses the x-axis is enough to give us some clue on how to solve inequalities of the form p(x) ≥ 0 or p(x) > 0. With this idea in mind, the steps are devised when sol ...
MATH 100 V1A
... at least two real roots cannot be valid, and so f must have exactly one real root. ...
... at least two real roots cannot be valid, and so f must have exactly one real root. ...