Advertisements
Advertisements
प्रश्न
Factorise : a - b - 4a2 + 4b2
उत्तर
a - b - 4a2 + 4b2
= ( a - b ) - 4( a2 - b2 )
= ( a - b ) - 4( a - b )( a + b ) [ ∵ a2 - b2 = ( a + b )( a - b )]
= ( a - b )[ 1 - 4( a + b )]
= ( a - b )[ 1 - 4a - 4b ]
APPEARS IN
संबंधित प्रश्न
Factorise the following expression:
7x − 42
Factorise the following expression:
7a2 + 14a
Factorise the following expression:
5x2y − 15xy2
Factorise.
15pq + 15 + 9q + 25p
Factorize the following:
2a4b4 − 3a3b5 + 4a2b5
Factorize the following:
28a2 + 14a2b2 − 21a4
Factorize the following:
x2yz + xy2z + xyz2
Factorise by taking out the common factors :
2 (2x - 5y) (3x + 4y) - 6 (2x - 5y) (x - y)
Factories by taking out common factors :
xy(3x2 - 2y2) - yz(2y2 - 3x2) + zx(15x2 - 10y2)
Factories by taking out common factors :
ab(a2 + b2 - c2) - bc(c2 - a2 - b2) + ca(a2 + b2 - c2)
Factorise:
`x^2 + 1/(4x^2) + 1 - 7x - 7/(2x)`
Factorise : `(9a)^2 + 1/(9a)^2 - 2 - 12a + 4/(3a)`
Factorise : 4x4 + 9y4 + 11x2y2
Factorise : `1/4 ( a + b )^2 - 9/16 ( 2a - b )^2`
Find the value of : ( 987 )2 - (13)2
Find the value of : `[(6.7)^2 - (3.3)^2]/[6.7 - 3.3]`
Factorise : 3x2 + 6x3
Factorise : 12abc - 6a2b2c2 + 3a3b3c3
Factorise : 4x(3x - 2y) - 2y(3x - 2y)
Factorise: 6xy(a2 + b2) + 8yz(a2 + b2) −10xz(a2 + b2)
factorise : x2y - xy2 + 5x - 5y
factorise : xy2 + (x - 1) y - 1
factorise : (ax + by)2 + (bx - ay)2
Factorise xy2 - xz2, Hence, find the value of :
40 x 5.52 - 40 x 4.52
Factorise the following by taking out the common factors:
4x2y3 - 6x3y2 - 12xy2
Factorise the following by taking out the common factors:
5a(x2 - y2) + 35b(x2 - y2)
Factorise the following by taking out the common factors:
(mx + ny)2 + (nx - my)2
Factorise the following by taking out the common factors:
p(p2 + q2 - r2) + q(r2 - q2 -p2) - r(p2 + q2 - r2)
Factorise:
`"p"^2 + (1)/"p"^2 - 3`
