Advertisements
Advertisements
प्रश्न
Find the cube of : 5a + 3b
योग
उत्तर
( a + b )3 = a3 + 3ab( a + b ) + b3
( 5a + 3b)3 = (5a)3 + 3 x 5a x 3b( 5a + 3b) + (3b)3
= 125a3 + 45ab( 5a + 3b ) + 27b3
= 125a3 + 225a2b + 135ab2 + 27b3
shaalaa.com
क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
APPEARS IN
संबंधित प्रश्न
Expand.
`(x + 1/x)^3`
Simplify.
(3r − 2k)3 + (3r + 2k)3
Find the cube of : 3a- 2b
Use property to evaluate : 383 + (-26)3 + (-12)3
If 2x - 3y = 10 and xy = 16; find the value of 8x3 - 27y3.
If `"r" - (1)/"r" = 4`; find : `"r"^3 - (1)/"r"^3`
If a + b = 5 and ab = 2, find a3 + b3.
Find 27a3 + 64b3, if 3a + 4b = 10 and ab = 2
Expand (3 + m)3
Expand (52)3
