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Algebra problems are easier to solve when you know the rules and formulas. Memorizing key algebra formulas will speed up your work, too. And if you know the rules of divisibility and the order of operations, you’ll be able to solve algebra problems without getting stressed.
Algebra Formulas Worth Memorizing
Some formulas occur frequently when you’re doing algebraic manipulations and working through mathematical applications. You’ll find ways to use these algebra formulas even when you’re doing something other than algebra, such as planning a garden or a road trip. Of course, you need to know what the letters and symbols in the formula mean, so both the formulas and the explanations are in this table.
Algebra’s Rules of Divisibility
In algebra, knowing the rules of divisibility can help you solve faster. When factoring algebraic expressions to solve equations, you need to be able to pull out the greatest factor. You also need common factors when reducing algebraic fractions. The rules of divisibility help you find the common factors and change the algebraic expressions so that they’re put in a more workable form.
Order of Operations in Algebra
Solve algebra problems correctly by following the order of operations. When performing more than one operation on an algebraic expression, work out the operations and signs in the following order:
If you have more than two operations of the same level, do them in order from left to right, following the order of operations.
Basic Math For Dummies Pdf
For example, to solve 24 ÷ 3 + 11 – 32 × 2, you would
Algebra For Dummies Worksheets Pdf Answers
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