Factorise: 2a2 + 7a + 6

factorise: 2a² + 7a + 6

Sum

2a² + 7a + 6

= 2a² + 4a + 3a + 6

= 2a(a + 2) + 3(a + 2)

= (a + 2)(2a + 3)

shaalaa.com

Factorisation by Grouping

Is there an error in this question or solution?

Chapter 13: Factorisation - Exercise 13 (D) [Page 161]

Chapter 13 Factorisation
Exercise 13 (D) | Q 10 | Page 161

Factorise by the grouping method:

ab (x² + 1) + x (a² + b²)

factorise: 6 + 7b - 3b²

factorise: 5 + 3a - 14a²

factorise: (2a + b)² + 5(2a + b) + 6

factorise: x(3x + 14) + 8

Factorise the following by grouping the terms:
15xy - 9x - 25y + 15

Factorise the following by grouping the terms:
15x² + 7y - 3x - 35xy

Factorise the following by grouping the terms:
8(2a + b)² - 8a -4b

Factorise the following by grouping the terms:
x(x - 4)- x + 4

Factorise the following by grouping the terms:
xy(a² + 1) + a(x² + y²)