2. Algebra is the use of letters and symbols to
represent values and their relations,
especially for solving equations.
navycaria
The combination of each letters and
symbols are called “Algebraic Expressions”.
3. Here are the exponent/
parts of an power/
Expression. degree
navycaria
8x² is an example of algebraic expression.
constant or
numerical variable or
coefficient literal
coefficient
4. Constants are symbols representing
exact value like π and numbers. Constants
are always written
navycaria
An expression like b, a³ and xy has a
constant of 1.
1 is not written in any expression. If an
expression has no constant, it is understood
the the constant is one.
6. Variables are used to represent
unknown values. Variables are often
represented by letters.
navycaria
If an expression has no variable,
therefore the expression is exact.
7. Expression Variable
7b7 b
23x²y xy
navycaria
ab4c abc
83f³ f
m m
8. Exponents are seen at the top of a
variable. Exponents in an expression can be
like or unlike. They also show how many
navycaria
times the variable appears in an expression.
If a variable has no exponent it is
understood that its exponent is one,
therefore there is no need to write one on
the top of a variable.
