Factorisation of p4 – 81² is
(a) (p²-9) (p²+9)
(b) (p-3) (p+3) (p² + 9)
(c) (p-3)² (p+3)²
(d) none of these
Answer :
(b) (p-3) (p+3) (p² + 9)
One of the factors of (25² -1) + (1 + 5x)² is
(a) 5+x
(b) 5-x
(c) 5x – 1
(d) 10x
Answer : (d) 10x
More Solutions:
- Factorise 21×2 – 59xy + 40y2
- Factorise x2y2 – xy – 72
- Factorise (3a – 2b)2 + 3(3a – 2b) – 10
- Factorise (x2 – 3x) (x2 – 3x + 7) + 10
- Factorise (x2 – x) (4×2 – 4x – 5) – 6
- Factorise x4 + 9x2y2 + 81y4
- Factorise (8/27)x3 – (1/8)y3
- Factorise x6 + 63×3 – 64
- Factorise x3 + x2 – (1/x2) + (1/x3)
- Factorise (x + 1)6 – (x – 1)6
- Find the value of a4 + a2b2 + b4.