When it comes to NCERT Solution for class 8 Mathematics Factorisation, then your search ends here with extramarks.com. An irreducible factor is a factor that cannot be expressed further as a product of factors. An expression with only one term is called a monomial. An expression with two terms is called a binomial. To know more visit https://www.extramarks.com/ncert-solutions/cbse-class-8/mathematics-factorisation