- Books Name
- class 7 Mathematics Book
- Publication
- ReginaTagebücher
- Course
- CBSE Class 7
- Subject
- Mathmatics
Types of algebraic expressions. Binomials
Any algebraic expression with two terms is called a binomial expression. a binomial expression has only two terms. This is the reason why it is called a binomial (prefix 'bi' stands for 'two').
Degree in an algebraic expression is the sum of the exponents of the variables in the expression.
Example: 7xy2−3y2z here
When multiplying or dividing a monomial by a number, multiply or divide only its coefficient.
Example:
6x⋅5=30x;−0,5zy⋅2=−zy;4x2:2=2x2
A binomial is an algebraic sum of monomials.
Example:
3x+2y;4xy−6y2
When multiplying or dividing a binomial by a number, each term is multiplied or divided.