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Absolute Value Formulas for Pre-Calculus

By Yang Kuang, Elleyne Kase

Part of Pre-Calculus For Dummies Cheat Sheet

Even though you’re involved with pre-calculus, you remember your old love, algebra, and that fact that absolute values then usually had two possible solutions. Now that you’re with pre-calculus, you realize that absolute values are a little trickier when you through inequalities into the mix. Never fear, the following formulas show you how to deal with absolute values in pre-calculus.

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