Math
Published on Nov 19, 2015
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PRESENTATION OUTLINE
Equation
An expression or a proposition, often algebraic, asserting the equality of two quantities.
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Variable
A quantity that can change or that may take on different values. Variable also refers to a letter or symbol representing such a quantity.
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Inequality
A mathematical sentence built from expressions using one or more of the symbols
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Order of operations
1.To begin, work within parentheses ( ), then brackets [ ], and then braces { } from innermost and work outward.
2.Simplify exponents and roots working from left to right.
3.Do multiplication and division, whichever comes first left to right.
4.Do addition and subtraction, whichever comes first left to right.
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Solution of an equation
A.the process of determining the answer to a problem.
B.the answer itself.
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Rational number
a number that can be expressed exactly by a ratio of two integers
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Algebraic expression
a symbol or a combination of symbols used in algebra, containing one or more numbers, variables, and arithmetic operations
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