Class 7 · Chapter 12
Algebraic Expressions
Terms, factors, coefficients; like and unlike terms; addition and subtraction of algebraic expressions.
Read the full chapter
Official NCERT PDF
Full chapter as published by NCERT
NCERT Book Portal
Browse the complete textbook
CBSE Academic Portal
Official CBSE curriculum
Tip: open the NCERT PDF for the original chapter text alongside the notes here.
Detailed theory
In , the number is the coefficient, are factors. A polynomial is a sum of such terms with non-negative integer exponents.
Key concepts & formulas
01
An expression like has terms .
02
Like terms have the same variable(s) with the same exponent.
03
Coefficient of in is .
04
Only like terms can be combined.
05
Degree highest power in the expression.