Advertisements
Advertisements
Question
factorise: x2y2 - 3xy - 40
Sum
Advertisements
Solution
x2y2 - 3xy - 40
= x2y2 - 8xy + 5xy - 40
= xy (xy - 8) + 5 (xy - 8)
= (xy - 8)(xy + 5)
shaalaa.com
Factorisation by Grouping
Is there an error in this question or solution?
APPEARS IN
RELATED QUESTIONS
Factorise by the grouping method : a2x2 + (ax2 + 1) x + a
Factorise by the grouping method : a (a -4) - a + 4
Factorise : xy - ay - ax + a2 + bx - ab
Factorise : 3x5 - 6x4 - 2x3 + 4x2 + x - 2
Factorise : 6a2 - 3a2b - bc2 + 2c2
Factorise : x2 - (b - 2)x - 2b
factorise: 2a2 + 7a + 6
factorise: 14x2 + x - 3
Factorise the following by grouping the terms:
8(2a + b)2 - 8a -4b
Factorise the following by grouping the terms:
2p(a2 - 2b2) -14p + (a2 - 2b2)2 - 7(a2 - 2b2)
