Factorise: X2y2 - 3xy - 40

factorise: x²y² - 3xy - 40

Sum

x²y² - 3xy - 40

= x²y² - 8xy + 5xy - 40

= xy (xy - 8) + 5 (xy - 8)

= (xy - 8)(xy + 5)

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Factorisation by Grouping

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Chapter 13: Factorisation - Exercise 13 (F) [Page 163]

Chapter 13 Factorisation
Exercise 13 (F) | Q 4.7 | Page 163

Factorise by the grouping method : a² + b - ab - a

Factorize using the grouping method:

x² + y² + x + y + 2xy

Factorise : 3a²b - 12a² - 9b + 36

Factorise : ab(c² + d²) - a²cd - b²cd

factorise: a² − 3a − 40

factorise: 2a² - 17ab + 26b²

factorise: 4c² + 3c - 10

factorise: 3a²x - bx + 3a² - b

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

Factorise the following by grouping the terms:

`"p"^2 + (1)/"p"^2 - 2 - 5"p" + (5)/"p"`