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mgb5e_ppt_1_4 - 1.4 Introduction to Variable Expressions...

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§ 1.4 Introduction to Variable Expressions and Equations
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Martin-Gay, Beginning Algebra, 5ed 2 Exponential notation is used to write repeated multiplication in a more compact form. 4 3 3 3 3 3 = exponent 4 base The expression 3 4 is called an exponential expression . Exponents 6 2 = 64 = 2 2 2 2 2 2 Example: Evaluate 2 6 .
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Martin-Gay, Beginning Algebra, 5ed 3 Order of Operations Order of Operations Simplify expressions using the order below. If grouping symbols such as parentheses are present, simplify expressions within those first, starting with the innermost set. If fraction bars are present, simplify the numerator and the denominator separately. 1. Evaluate exponential expressions 2. Perform multiplication or division in order from left to right. 3. Perform addition or subtraction in order from left to right.
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Martin-Gay, Beginning Algebra, 5ed 4 Using the Order of Operations Simplify the expression.
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