NCERT Solutions for Class 8 Maths Chapter 12 Exercise 12.1 Factorisation in Hindi and English Medium updated for CBSE session 2023-24. All the question answers and explanation of ex. 12.1 class 8 mathematics are updated according to new NCERT textbooks issued for CBSE 2023-24.

Class: 8Mathematics
Chapter: 12Exercise: 12.1
Chapter Name:Factorisation
Content Type:PDF and Videos Solution
Academic Year:CBSE 2023-24
Medium:Hindi and English Medium

Class 8 Maths Chapter 12 Exercise 12.1 Solution

Class VIII Mathematics NCERT Book Ex. 12.1 of Factorisation in Hindi Medium and English Medium updated for academic session 2023-24. Videos and PDF solutions are given here, which contains the step by step solution of all questions of factorisation exercises. Class 8 mathematics exercise 12.1 contains the questions based on common factors of algebraic expression. There is no need to login or registration to access the contents on Tiwari Academy.

App for CBSE Class 8

Factors

When an algebraic expression can be written as the product of two or more expressions, then each of these expressions is called a factor of the given expression.

Factorisation
The process of finding two or more expressions whose product is the given expression is called factorisation.
Note: Factorisation is the reverse process of multiplication.

Find factors of 15x + 10xy.
We can write 15x + 10xy as
15x = 3 X 5 X x ……………(i)
And 10xy = 2 X 5 X x X y …………….(ii)
In (i) and (ii), 5 and x are common factors, so, we can write
15x + 10xy = (3 X 5 X x) + (3 X 5 X x X y)
= (5 X x) (3 + 2y)
= (5x) (3 + 2y)
Hence, the factors of 15x + 10xy are 5x and (3 + 2y).

Factorise the 9x² + 18x
We can write,
9x² = 3 X 3 X x X x
And 18x = 2 x 3 x 3 x x
9x² + 18x = (3 X 3 X x X x) + (2 x 3 x 3 x x)
= 3 X 3 X x (x + 2) (3 x 3 x x is common)
= 9x (x + 2)

How is factorization used in real life?
Factoring is a useful skill in real life. Common applications include: dividing something into equal pieces, exchanging money, comparing prices, understanding time and making calculations during travel.

What is the difference between factor and factorization?
Difference between factorization and factor, is that factorization is (mathematics): an expression listing items that, when multiplied together, will produce a desired quantity while factor is (mathematics) any of various objects multiplied together to form some whole.

What are the common factors for 25 and 30?
Greatest Common Factor of 25 and 30
25 = 1 x 5 x 5 and
30 = 1 x 2 x 3 x 5
Greatest common factor (GCF) of 25 and 30 is 5.

Class 8 Maths Exercise 12.1 solutions in English Medium
Class 8 Maths Ex. 12.1
Class 8 Maths Exercise 12.1
Last Edited: April 17, 2023