mistakes trip you up; keep in mind that when working with polynomial functions, your challenges will include
Watching the order of operations when using the quadratic formula
Adding to both sides when completing the square
Remembering to insert zeros for missing terms when using synthetic division
Recognizing the effect of imaginary roots on the graph of a polynomial
Using Factoring to Solve Quadratic Equations
251–260 Find the solution set for the equation by factoring.
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Solving Quadratic Equations by Using the Quadratic Formula
261–265 Use the quadratic formula to solve the equation.
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Using Completing the Square to Solve Quadratic Equations
266–270 Solve the equation by completing the square.
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Solving Polynomial Equations for Intercepts
271–276 Find the real roots
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Using Factoring by Grouping to Solve Polynomial Equations
277–280 Find the real roots
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Applying Descartes’s Rule of Signs
281–285 Use Descartes’s rule of signs to determine the possible number of positive and negative real roots of the function.
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Listing Possible Roots of a Polynomial Equation
286–290 Use the rational root theorem
