Advertisements
Advertisements
प्रश्न
Factorise the following, using the identity a2 – 2ab + b2 = (a – b)2.
`x^2/4 - 2x + 4`
Advertisements
उत्तर
We have,
`x^2/4 - 2x + 4`
= `(x/2)^2 - 2 xx x/2 xx 2 + 2^2`
= `(x/2 - 2)^2`
= `(x/2 - 2)(x /2 - 2)`
APPEARS IN
संबंधित प्रश्न
The factors of x2 – 4x + 4 are __________
Evaluate the following, using suitable identity
472
Factorised form of 4y2 – 12y + 9 is ______.
(a – b)2 = a2 – b2
Using suitable identities, evaluate the following.
(9.9)2
Factorise the following, using the identity a2 – 2ab + b2 = (a – b)2.
x2 – 10x + 25
Factorise the following, using the identity a2 – 2ab + b2 = (a – b)2.
p2 – 2p + 1
Factorise the following, using the identity a2 – 2ab + b2 = (a – b)2.
`9y^2 - 4xy + (4x^2)/9`
Factorise the following.
y2 + 4y – 21
Subtract b(b2 + b – 7) + 5 from 3b2 – 8 and find the value of expression obtained for b = – 3.
