Factorise: X2y2 - 3xy - 40 - Mathematics

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 : ab - 2b + a² - 2a

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

Factorise : 2ab² - aby + 2cby - cy²

factorise: x² - x - 72

factorise: 5x² - 4xy - 12y²

factorise: 5 - 4x(1 + 3x)

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

Factorise the following by grouping the terms:
9x³ + 6x²y² - 4y³ - 6xy

Factorise the following by grouping the terms:
p²x² + (px² + 1)x + p

Factorise the following by grouping the terms:
x² - (p + q)x + pq