# Algebra

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stephanieyw's
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2017-09-22 02:59

## Section 1

Question | Answer |
---|---|

Algebraic expression | an expression consisting of one or more numbers and variables along with one or more arithmetic operations |

variable | symbols used to represent unspecified numbers or values |

term | a number, a variable, a product, or quotient of numbers and variables |

factor | In an expression, the quantities being multiplied are called factors |

product | In an algebraic expression, the result of being multiplied is called the product |

power | an expression of the form x^n, read x to the Nth power |

exponent | In an expression of the form x^n, the exponent is n. It indicates the number of times x is used as a factor |

base | In an expression of the form x^n, the base is x |

## Section 2

Question | Answer |
---|---|

evaluate | to find the value of an expression |

Order of operations | 1.)evaluate inside grouping symbols 2.)evaluate all powers 3.)all multiplication or division-left to right 4.)all addition- left to right |

positive number | any value greater than 0 |

negative number | any value less than 0 |

natural number | a set of positive numbers used for counting {1,2,3...} |

whole numbers | a set of natural numbers and 0 |

integers | the set of whole numbers and their opposites Z |

rational numbers | a set of numbers expressed in the form of a fraction * designated by the letter Q = quotient |

irrational numbers | decimals don't repeat or terminate |

real numbers | rational and irrational numbers( whole number set) |

square root | one or two equal factors of a number |

principal square root | square root is positive rational |

perfect square | square root is rational |

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