Advertisements
Advertisements
प्रश्न
Factorise : 9(a - 2)2 - 16(a + 2)2
उत्तर
9(a - 2)2 - 16(a + 2)2
= [3 (a - 2)]2 - [4(a + 2)]2
= [3 (a - 2) + 4 (a + 2)] [3(a - 2) - 4(a + 2)] ...[∵ a2 - b2 = (a + b)(a - b)]
= [3a - 6 + 4a + 8] [3a - 6 - 4a - 8]
= (7a + 2)(- a - 14)
= - (7a + 2)(a + 14)
APPEARS IN
संबंधित प्रश्न
Factorise : a2 - (2a + 3b)2
Factorise : 4a2 - 49b2 + 2a - 7b
Factorise : 4x2 - 12ax - y2 - z2 - 2yz + 9a2
Factorise : (x2 + 4y2 - 9z2)2 - 16x2y2
Factorize : 9a2 - (a2 - 4) 2
Factorise : a2 ( b + c) - (b + c)3
Factorise the following by the difference of two squares:
a(a - 1) - b(b - 1)
Factorise the following:
4x2 - 12ax - y2 - z2 - 2yz + 9a2
Express each of the following as the difference of two squares:
(x2 - 2x + 3) (x2 - 2x - 3)
Express each of the following as the difference of two squares:
(x2 + 2x - 3) (x2 - 2x + 3)
