Advertisements
Advertisements
प्रश्न
Expand.
(7 + m)3
योग
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
क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
संबंधित प्रश्न
Expand.
(7x + 8y)3
Find the cube of : 3a- 2b
Use property to evaluate : 73 + 33 + (-10)3
If a ≠ 0 and `a - 1/a` = 3 ; find `a^2 + 1/a^2`
If a ≠ 0 and `a - 1/a` = 4 ; find : `( a^3 - 1/a^3 )`
Find the cube of: `3"a" + (1)/(3"a")`
If `"p" + (1)/"p" = 6`; find : `"p"^3 + (1)/"p"^3`
If `"a" + (1)/"a" = "p"`; then show that `"a"^3 + (1)/"a"^3 = "p"("p"^2 - 3)`
Expand: (3x + 4y)3.
Find 27a3 + 64b3, if 3a + 4b = 10 and ab = 2
