Advertisements
Advertisements
Question
factorise: 5x2 - 4xy - 12y2
Sum
Advertisements
Solution
5x2 - 4xy - 12y2
= 5x2 - 10xy + 6xy - 12y2
= 5x (x - 2y) + 6y (x - 2y)
= (x - 2y)(5x + 6y)
shaalaa.com
Factorisation by Grouping
Is there an error in this question or solution?
APPEARS IN
RELATED QUESTIONS
Factorise : (a2 − b2) c + (b2 − c2)a
Factorise : ax + 2bx + 3cx - 3a - 6b - 9c
factorise: 3a2 - 5a + 2
factorise: 5 + 3a - 14a2
factorise: 1 − (2x + 3y) − 6(2x + 3y)2
Factorise: 2(x + 2y)2 − 5(x + 2y) + 2
factorise: 5 - 4x(1 + 3x)
factorise: (3x - 2y)2 - 5(3x - 2y) - 24
factorise: b(c - d)2 + a(d - c) + 3(c - d)
Factorise the following by grouping the terms:
15xy - 9x - 25y + 15
