Advertisements
Advertisements
प्रश्न
Factorise by the grouping method : a2 + b - ab - a
Advertisements
उत्तर
a2 + b - ab - a = a2 - a + b - ab
= a( a - 1) + b( 1 - a )
= a(a - 1) - b(a - 1)
= (a -1)(a - b)
APPEARS IN
संबंधित प्रश्न
Factorise by the grouping method: 16 (a + b)2 - 4a - 4b
Factorise by the grouping method : a4 - 2a3 - 4a + 8
Factorise by the grouping method : a (a -4) - a + 4
Factorise by the grouping method :
`a^2 + 1/a^2 - 2 - 3a + 3/a`
factorise: 4c2 + 3c - 10
factorise: (x - 2y)2 - 12(x - 2y) + 32
factorise: (3x - 2y)2 - 5(3x - 2y) - 24
Factorise the following by grouping the terms:
x(x - 4)- x + 4
Factorise the following by grouping the terms:
2m3 - 5n2 - 5m2n + 2mn
Factorise the following by grouping the terms:
`(1)/(25x^2) + 16x^2 + (8)/(5) - 12x - (3)/(5x)`
