Advertisements
Advertisements
प्रश्न
Evaluate: `(1/2 "a" + 1/2 "b") (1/2 "a" - 1/2 "b")`
Advertisements
उत्तर
`(1/2 "a" + 1/2 "b") (1/2 "a" - 1/2 "b")`
`= 1/"2a" (1/2 "a" - 1/2"b") + 1/2"b"(1/2"a" - 1/2"b")`
`= 1/4 "a"^2 - 1/4"ab" + 1/4 "ab" - 1/4 "b"^2`
`= 1/4 "a"^2 - 1/4 "b"^2`
APPEARS IN
संबंधित प्रश्न
Factorize a2 + 4b2 - 4ab - 4c2
Factorize the following expressions:
x4y4 - xy
Factorize the following expressions:
a3 + b3 + a + b
Factorize 8x3 + 27 y3 + 36x2 y + 54xy2
Evaluate: (a2 + 2ab + b2)(a + b)
Divide: - 50 + 40p by 10p
Divide: 8a2 + 4a - 60 by 2a - 5
Divide: 10x3y - 9xy2 - 4x2y2 by xy
In a polynomial, the exponents of the variables are always ______.
In the given figure, the length of a green side is given by g and that of the red side is given by p.
Write an expression for the following pattern. Also write an expression if 100 such shapes are joined together.
