Simplifying expressions ok1296542578
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Transcript of Simplifying expressions ok1296542578
1-2 Simplifying Expressions.
Expressions
• A group of symbols used to represent a number
• The number represented by the expression
yx 33
Value
Equation
• A combination of an expression and a value
1233 yx
Inequality Symbols
thangreater
thanless
equalnot
equalorthangreater
equalorthanless
Inequalities
• Made by placing an inequality symbol between an expression and a value
1233 yx
Results
• Sum is the result of addition• Difference is the result of subtraction• Product is the result of multiplication• Quotient is the result of division.
Powers
xxxx
timesnitselftimesxmeansxn
3
Grouping Symbols
• Three main grouping symbols
bardivisionb
a
brackets
sparenthese
Order of Operations
1st Grouping symbols2nd Powers3rd Multiplication & Division4th Addition & Subtraction
Questions
• Assignment: Pages 10 - 11 / 2 - 44 evens• No Calculators