Advertisements
Advertisements
प्रश्न
Factorise the following using the identity a2 – b2 = (a + b)(a – b).
x2 – 9
Advertisements
उत्तर
We have,
x2 – 9 = x2 – 32 ...[∵ a2 – b2 = (a – b)(a + b)]
= (x – 3)(x + 3)
APPEARS IN
संबंधित प्रश्न
Factorise the following expressions
m2 + m – 72
(x + 4) and (x – 5) are the factors of ___________
Simplify using identities
(3p + q)(3p – q)
If X = a2 – 1 and Y = 1 – b2, then find X + Y and factorize the same
Using suitable identities, evaluate the following.
(339)2 – (161)2
Factorise the following using the identity a2 – b2 = (a + b)(a – b).
3a2b3 – 27a4b
Factorise the following using the identity a2 – b2 = (a + b)(a – b).
`(x^3y)/9 - (xy^3)/16`
Factorise the following using the identity a2 – b2 = (a + b)(a – b).
`1/36a^2b^2 - 16/49b^2c^2`
The radius of a circle is 7ab – 7bc – 14ac. Find the circumference of the circle. `(pi = 22/7)`
The product of two expressions is x5 + x3 + x. If one of them is x2 + x + 1, find the other.
