Advertisements
Advertisements
प्रश्न
Using the identity (a + b)(a – b) = a2 – b2, find the following product
(p + 2)(p – 2)
Advertisements
उत्तर
(p + 2)(p – 2)
Substituting a = p, b = 2
In (a + b)(a – b) = a2 – b2, we get
(p + 2)(p – 2) = p2 – 22
APPEARS IN
संबंधित प्रश्न
Using the identity (a + b)(a – b) = a2 – b2, find the following product
(1 + 3b)(3b – 1)
Simplify (5x – 3y)2 – (5x + 3y)2
672 – 372 = (67 – 37) × ______ = ______.
Factorise the following using the identity a2 – b2 = (a + b)(a – b).
`x^2/8 - y^2/18`
Factorise the following using the identity a2 – b2 = (a + b)(a – b).
`(4x^2)/9 - (9y^2)/16`
Factorise the following using the identity a2 – b2 = (a + b)(a – b).
y4 – 81
Factorise the following using the identity a2 – b2 = (a + b)(a – b).
8a3 – 2a
Find the value of a, if pqa = (3p + q)2 – (3p – q)2
Find the value of a, if pq2a = (4pq + 3q)2 – (4pq – 3q)2
Find the value of `(198 xx 198 - 102 xx 102)/96`
