Math 3 Hon - Unit 2: Evaluating and Simplifying Expressions Expression A math statement without an equal sign (simplify, evaluate, or factor) Evaluate.

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Presentation transcript:

Math 3 Hon - Unit 2: Evaluating and Simplifying Expressions Expression A math statement without an equal sign (simplify, evaluate, or factor) Evaluate Testing a value in an expression (simplify using PEMDAS) Simplify To completely +, –, x, or / an expression using PEMDAS. Equation: A math statement with an equal sign (solve) “=” Inequality: A math statement with an inequality sign (solve) “, ≤, ≥”

Example 1Evaluating Expressions Let x = 5, y = -2, and z = 2. a) b) c)d)

Example 2Simplifying Expressions a) b) c) d)

Unit 2: Steps for Solving Equations & Inequalities [1]Simplify both side of equation / inequality [2]Move the variable to one side (eliminate the smaller) [3]Isolate the variable (use inverse operations, Backwards PEMDAS ) Note Inequalities: Divide/Multiply by a negative, switch inequality sign + – x ÷ (...) 2 #2: 5 (3x +2) – 7x = 2x x #1: 5x – 3(2x – 2) = 3x – 10