Advertisements
Advertisements
प्रश्न
Expand.
(7 + m)3
बेरीज
Advertisements
उत्तर
(7 + m)3
= (7)3 + 3 × (7)2 × (m) + 3 × (7) × (m)2 + (m)3 …[∵ (a + b)3 = a3 + 3a2b + 3ab2 + b3]
= 343 + 3(49)(m) + 3(7)(m2) + m3
= 343 + 147m + 21m2 + m3
shaalaa.com
या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
संबंधित प्रश्न
Expand.
`(x + 1/x)^3`
Use property to evaluate:
133 + (–8)3 + (–5)3
Expand : (3x - 5y - 2z) (3x - 5y + 2z)
If X ≠ 0 and X + `1/"X"` = 2 ; then show that :
`x^2 + 1/x^2 = x^3 + 1/x^3 = x^4 + 1/x^4`
Find the cube of: 2a - 5b
Find the cube of: `(2"m")/(3"n") + (3"n")/(2"m")`
If `"m"^2 + (1)/"m"^2 = 51`; find the value of `"m"^3 - (1)/"m"^3`
If a + 2b + c = 0; then show that a3 + 8b3 + c3 = 6abc
Expand: `[x + 1/y]^3`
(p + q)(p2 – pq + q2) is equal to _____________
