Advertisements
Advertisements
प्रश्न
Simplify:
(a + b)3 + (a - b)3
बेरीज
Advertisements
उत्तर
(a + b)3 + (a - b)3
= a3 + b3 + 3ab (a + b) + a3 - 3ab (a - b) - b3
= a3 + b3 + 3a2b + 3ab2 + a3 - 3a2b + 3ab2 - b3
= 2a3 + 6ab2.
shaalaa.com
या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
APPEARS IN
संबंधित प्रश्न
Expand.
`((5x)/y + y/(5x))^3`
If `( a + 1/a )^2 = 3 "and a ≠ 0; then show:" a^3 + 1/a^3 = 0`.
Use property to evaluate : 383 + (-26)3 + (-12)3
Expand : (3x - 5y - 2z) (3x - 5y + 2z)
If 2x - 3y = 10 and xy = 16; find the value of 8x3 - 27y3.
Find the cube of: `4"p" - (1)/"p"`
If `("a" + 1/"a")^2 = 3`; then show that `"a"^3 + (1)/"a"^3 = 0`
If a + b + c = 0; then show that a3 + b3 + c3 = 3abc.
Evaluate the following :
(5.45)3 + (3.55)3
Expand: `[x + 1/y]^3`
