Advertisements
Advertisements
प्रश्न
Factorise the following using appropriate identity:
`x^2 - y^2/100`
Advertisements
उत्तर
`x^2 - y^2/100 = x^2 - (y/10)^2`
= `(x+y/10)(x-y/10)` ...[x2 − y2 = (x + y)(x − y)]
APPEARS IN
संबंधित प्रश्न
Factorise the following:
8a3 – b3 – 12a2b + 6ab2
Without actually calculating the cubes, find the value of the following:
(28)3 + (–15)3 + (–13)3
Give possible expression for the length and breadth of the following rectangle, in which their area is given:
| Area : 35y2 + 13y – 12 |
Write in the expanded form:
`(m + 2n - 5p)^2`
Write in the expand form: `(2x - y + z)^2`
If \[x + \frac{1}{x} = 5\], find the value of \[x^3 + \frac{1}{x^3}\]
If \[x^2 + \frac{1}{x^2}\], find the value of \[x^3 - \frac{1}{x^3}\]
Evaluate of the following:
`(10.4)^3`
Find the following product:
(3x + 2y) (9x2 − 6xy + 4y2)
Evaluate:
253 − 753 + 503
Evaluate:
483 − 303 − 183
If \[x + \frac{1}{x} = 2\], then \[x^3 + \frac{1}{x^3} =\]
If a1/3 + b1/3 + c1/3 = 0, then
The number x is 2 more than the number y. If the sum of the squares of x and y is 34, then find the product of x and y.
Use the direct method to evaluate :
(3b−1) (3b+1)
Evaluate: `(2"x"-3/5)(2"x"+3/5)`
Simplify by using formula :
(5x - 9) (5x + 9)
Simplify by using formula :
(x + y - 3) (x + y + 3)
Simplify by using formula :
`("a" + 2/"a" - 1) ("a" - 2/"a" - 1)`
If a2 - 3a - 1 = 0 and a ≠ 0, find : `"a" + (1)/"a"`
