A mathematical phrase that can include numbers, variables, and operators (e.g., 3x + 5).
Parts of an expression separated by plus or minus signs. Example: In 2x + 3y - 5, the terms are 2x, 3y, and -5.
The numerical factor in a term. Example: In 4x, 4 is the coefficient.
Substitute values for the variables. Example: For x = 2 in 3x + 4, evaluate as 3(2) + 4 = 10.
Identify terms with the same variable and exponent. Example: 3x + 2x = 5x.
Analyzing errors helps avoid repeating them in the future.
Fixed values that do not change. Example: In 3x + 4, 4 is a constant.
Practice regularly to reinforce concepts.
Symbols that represent unknown values. Example: In x + 2, x is the variable.
a^2 - b^2 = (a + b)(a - b). Example: x^2 - 9 = (x + 3)(x - 3).
a(b + c) = ab + ac. Example: 2(x + 3) = 2x + 6.
Diagrams and charts can clarify complex ideas.
The greatest common factor (GCF) that can be factored out. Example: 6x + 9 = 3(2x + 3).
