a3 - 8 in the form of factors is :
(a - 2)(a2 - 2a + 4)
(a - 2)(a2 + 2a + 4)
(a - 2)(a2 + 2a - 4)
(a + 2)(a2 - 2a + 4)
16 Likes
Given,
a3 - 8
= (a)3 - (2)3
= (a - 2)[(a)2 + 2 × a + (2)2]
= (a - 2)(a2 + 2a + 4)
Hence, Option 2 is the correct option.
Answered By
10 Likes
(a + b)2 - a2 + b2
a2 - b2 - (a + b)2
27 + 8x3 in the form of factors is :
(3 + 2x)(9 + 6x + 4x2)
(3 - 2x)(9 + 6x + 4x2)
(3 + 2x)(9 - 6x + 4x2)
(3 - 2x)(9 - 6x + 4x2)
8a3 + 1 in the form of factors is :
(2a + 1)(4a2 - 2a + 1)
(2a - 1)(4a2 - 2a + 1)
(2a + 1)(4a2 + 2a + 1)
(2a - 1)(4a2 + 2a + 1)