Advertisements
Advertisements
प्रश्न
Factorise the following using the identity a2 – b2 = (a + b)(a – b).
`x^2/25 - 625`
उत्तर
We have,
`x^2/25 - 625 = (x/5)^2 - (25)^2`
= `(x/5 - 25)(x/5 + 25)`
APPEARS IN
संबंधित प्रश्न
Expand: (3x + 4y)(3x - 4y)
Using the identity (a + b)(a – b) = a2 – b2, find the following product
(6x + 7y)(6x – 7y)
(5 + 20)(–20 – 5) = ?
a2 – b2 = (a + b) ______.
Using suitable identities, evaluate the following.
(69.3)2 – (30.7)2
Factorise the following using the identity a2 – b2 = (a + b)(a – b).
4x2 – 49y2
Factorise the following using the identity a2 – b2 = (a + b)(a – b).
49x2 – 36y2
Factorise the following using the identity a2 – b2 = (a + b)(a – b).
x4 – y4 + x2 – y2
Factorise the expressions and divide them as directed:
(x4 – 16) ÷ x3 + 2x2 + 4x + 8
The base of a parallelogram is (2x + 3 units) and the corresponding height is (2x – 3 units). Find the area of the parallelogram in terms of x. What will be the area of parallelogram of x = 30 units?
