Advertisements
Advertisements
Question
Factorise the following, using the identity a2 – 2ab + b2 = (a – b)2.
a2y2 – 2aby + b2
Sum
Advertisements
Solution
We have,
a2y2 – 2aby + b2
= (ay)2 – 2 × ay × b + b2
= (ay – b)2
= (ay – b)(ay – b)
shaalaa.com
Is there an error in this question or solution?
Chapter 7: Algebraic Expression, Identities and Factorisation - Exercise [Page 234]
APPEARS IN
RELATED QUESTIONS
(p – q)2 = _______________
The factors of x2 – 4x + 4 are __________
Factorise the following using suitable identity
64x2 – 112xy + 49y2
Using identity, find the value of (4.9)2
Simplify: (a + b)2 – (a – b)2
Factorise the following, using the identity a2 – 2ab + b2 = (a – b)2.
x2 – 8x + 16
Factorise the following, using the identity a2 – 2ab + b2 = (a – b)2.
9x2 – 12x + 4
Factorise the following.
y2 + 4y – 21
Factorise the following.
x2 – 10x + 21
If x – y = 13 and xy = 28, then find x2 + y2.
