Advertisements
Advertisements
प्रश्न
Expand.
(k + 4)3
योग
Advertisements
उत्तर
It is known that,
`(a+b)^3 = a^3 + 3a^2b +3ab^2 + b^3`
= (k + 4)3 = `(k)^3 + 3 xx (k)^2 xx (4) + 3 xx (k) xx (4)^2 + (4)^3`
= `(k)^3 + 12(k)^2 + 3(k)(16) + 64`
= `k^3 + 12k^2 + 48k + 64`
shaalaa.com
क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
संबंधित प्रश्न
Expand.
`(x + 1/x)^3`
Find the cube of: `3"a" + (1)/(3"a")`
Find the cube of: `4"p" - (1)/"p"`
Find the cube of: `(2"m")/(3"n") + (3"n")/(2"m")`
If `5x + (1)/(5x) = 7`; find the value of `125x^3 + (1)/(125x^3)`.
If `"m"^2 + (1)/"m"^2 = 51`; find the value of `"m"^3 - (1)/"m"^3`
If a + b = 5 and ab = 2, find a3 + b3.
Simplify:
`("a" + 1/"a")^3 - ("a" - 1/"a")^3`
Expand: `((2m)/n + n/(2m))^3`.
Find the volume of the cube whose side is (x + 1) cm
