Advertisements
Advertisements
Question
Factorise the following:
25(x - y)2 - 49(c - d)2
Sum
Advertisements
Solution
25(x - y)2 - 49(c - d)2
= [5(x - y)]2 - [7(c - )]2
= [5(x - y) - 7(c - d)][5(x - y) + 7(c - d)]
= (5x - 5y - 7c + 7d)(5x - 5y + 7c - 7d).
shaalaa.com
Method of Factorisation : Difference of Two Squares
Is there an error in this question or solution?
APPEARS IN
RELATED QUESTIONS
Factorise : 50a3 - 2a
Factorise : a4 - 1
Factorise : (a + b)3 - a - b
Factorise : 9a2 + 3a - 8b - 64b2
Factorise : (a2 + b2 - 4c2)2 - 4a2b2
Factorise : (x2 + 4y2 - 9z2)2 - 16x2y2
Factorise the following by the difference of two squares:
a(a - 1) - b(b - 1)
Factorise the following by the difference of two squares:
x2 + y2 - z2 - 2xy
Factorise the following by the difference of two squares:
(x - 2y)2 -z2
Factorise the following:
4xy - x2 - 4y2 + z2
