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Lesson 's Glossary: Constant
(monomial): It is a number or value that remains always the same. Never changes.
Evaluating a variable expression:
Given an expression and values for the variables, it is the process of substituting these values in the expression and simplify it following the order of operations.
Formula:
Any equation which states a rule in a relationship.
Grouping symbol: Parentheses, brackets, fraction bar are grouping symbols used to enclose an expression that should be simplified before other operations are performed.
Numerical expression: Any expression naming a particular numbers; also a numeral.
Power of a number: The product we obtain when a number is
multiplied by itself a number of times; 3x3x3x3 is the fourth power
of 3 or 34
Quadratic formula: Solutions of a
quadratic equation in the form ax2 + bx + c
=0 and b2 - 4ac needs to be equal or
greater than zero to yield real numbers.
Simplifying a numerical expression:
Changing any expression to the simplest name for its value.
Value of a numerical expression:
The resulting number of the expression.
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