Advertisements
Advertisements
प्रश्न
Factorise : a - b - a3 + b3
बेरीज
उत्तर
we know that,
a3 - b3 = ( a - b )( a2 + ab + b2 ) ....(1)
a - b - a3 + b3
= a - b - ( a3 - b3 )
= ( a - b ) - ( a - b )[ a2 + ab + b2 ] [ From (1) ]
= ( a - b )[ 1 - a2 - ab - b2 ]
shaalaa.com
Method of Factorisation : the Sum Or Difference of Two Cubes
या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
APPEARS IN
संबंधित प्रश्न
Factorise : 64 - a3b3
Factorise : a6 + 27b3
Factorise : a3 + 0.064
Factorise : a3 + 0.064
Factorise : a3 + 0.064
Factorise: (x - y)3 - 8x3
Factorise:
`(8"a"^3)/27 - "b"^3/8`
Factorise : a6 - b6
Factorise:
a3 - 27b3 + 2a2b - 6ab2
Evaluate :
`[ 5.67 xx 5.67 xx 5.67 + 4.33 xx 4.33 xx 4.33 ]/[5.67 xx 5.67 - 5.67 xx 4.33 + 4.33 xx 4.33]`
