Advertisements
Advertisements
प्रश्न
Factorise : a3 - `27/a^3`
योग
Advertisements
उत्तर
a3 - `27/a^3`
= (a)3 - `(3/a)^3`
= `( a - 3/a )[ a^2 + a xx 3/a + (3/a)^2 ]` [ ∵ a3 +b3 = ( a -b )( a2 + ab + b2 )]
= `( a - 3/a )( a^2 + 3 + 9/a^2 )`
shaalaa.com
Method of Factorisation : the Sum Or Difference of Two Cubes
क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
APPEARS IN
संबंधित प्रश्न
Factorise : 1 - 8a3
Factorise : a3 + 0.064
Factorise : a3 + 0.064
Factorise : a3 + 0.064
Factorise : 1029 - 3x3
Show that : 133 - 53 is divisible by 8
Show that : 353 + 273 is divisible by 62
Factorise:
a3 - 27b3 + 2a2b - 6ab2
Factorise : 8a3 - b3 - 4ax + 2bx
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]`
