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Alpha Teach Yourself Algebra I in 24 Hours by Jane Cook

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Hour 10
Polynomials: Solving Equations and Factoring
Now that you are able to simplify polynomial expressions with the four operations, it’s time to move toward solving equations that include more complex polynomial terms. The equations you learned how to solve in Hours 5 and 6 had variables that were simple—they had exponents of 1. By the end of this hour, you’ll be able to solve equations like x2 + 6x + 8 = 0 or x2 - 7x + 12 = 0.
 
As with almost every hour of studying algebra, learning to solve these equations evolves as you build on prior knowledge and adapt it to meet your goal. Combining binomial multiplication from Hour 8 with the basic equations from Hour 5, you’ll know how to solve higher-level equations.

Solving Factored Equations ...

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