Advertisements
Advertisements
प्रश्न
Factorise the following using the identity a2 – b2 = (a + b)(a – b).
`(4x^2)/9 - (9y^2)/16`
Advertisements
उत्तर
We have,
`(4x^2)/9 - (9y^2)/16 = ((2x)/3)^2 - ((3y)/4)^2`
= `((2x)/3 + (3y)/4)((2x)/3 - (3y)/4)`
APPEARS IN
संबंधित प्रश्न
Expand 4p2 – 25q2
Factorise the following expressions
m2 + m – 72
Using the identity (a + b)(a – b) = a2 – b2, find the following product
(p + 2)(p – 2)
Factorise: 4x2 – 9y2
Factorise the following using the identity a2 – b2 = (a + b)(a – b).
4x2 – 25y2
Factorise the following using the identity a2 – b2 = (a + b)(a – b).
`1/36a^2b^2 - 16/49b^2c^2`
Factorise the following using the identity a2 – b2 = (a + b)(a – b).
x4 – y4
Factorise the following using the identity a2 – b2 = (a + b)(a – b).
8a3 – 2a
The radius of a circle is 7ab – 7bc – 14ac. Find the circumference of the circle. `(pi = 22/7)`
Verify the following:
(a2 – b2)(a2 + b2) + (b2 – c2)(b2 + c2) + (c2 – a2) + (c2 + a2) = 0
