Advertisements
Advertisements
प्रश्न
Find the cube of : 5a + 3b
बेरीज
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
या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
APPEARS IN
संबंधित प्रश्न
Expand.
(k + 4)3
Expand.
`(x + 1/x)^3`
If a + 2b = 5; then show that : a3 + 8b3 + 30ab = 125.
Use property to evaluate : 133 + (-8)3 + (-5)3
If a ≠ 0 and `a - 1/a` = 4 ; find : `( a^3 - 1/a^3 )`
If `x + (1)/x = 5`, find the value of `x^2 + (1)/x^2, x^3 + (1)/x^3` and `x^4 + (1)/x^4`.
If `"p" + (1)/"p" = 6`; find : `"p"^3 + (1)/"p"^3`
Expand: `[x + 1/y]^3`
Expand (52)3
Expand (104)3
