Advertisements
Advertisements
प्रश्न
Factorise the following using the identity a2 – b2 = (a + b)(a – b).
16x4 – 81
Advertisements
उत्तर
We have,
16x4 – 81 = (4x2)2 – 92
= (4x2 + 9)(4x2 – 9)
= (4x2 + 9)[(2x)2 – 32]
= (4x2 + 9)(2x + 3)(2x – 3)
APPEARS IN
संबंधित प्रश्न
Factorise the following algebraic expression by using the identity a2 – b2 = (a + b)(a – b)
25a2 – 49b2
The value of p for 512 – 492 = 100p is 2.
Using suitable identities, evaluate the following.
(35.4)2 – (14.6)2
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).
`x^2/25 - 625`
Factorise the following using the identity a2 – b2 = (a + b)(a – b).
a4 – (a – b)4
Factorise the following using the identity a2 – b2 = (a + b)(a – b).
p5 – 16p
Factorise the following using the identity a2 – b2 = (a + b)(a – b).
x4 – y4
Factorise the expression and divide them as directed:
(x2 – 22x + 117) ÷ (x – 13)
Find the value of a, if 8a = 352 – 272
