If x + a is a factor of x4 - a2x2 + 3x - a, then the value of a is
0
1
2
3
Factorise ax + bx + ay + by .
( a + b ) (x +a )
( a + b ) (x + y )
( a + b ) ( x + b )
None of these
Factorise 6 ab - b2 + 12 ac - 2 bc
( b + 2 c ) ( 6 a - b )
(b - 2c) ( 6a + b )
( b - 2b ) (6a + b )
If (x + 1) is a factor of 2x3 - x2 - (2a -3)x + 2, then the value of 'a' is
3/2
1/2
The greatest common factor of 48 a2b2c2 and 84 a3 b3 c3 is
12 a2 b2 c2
4abc
4a2b2c2
4a2c2b
Factorise 9a2 - 6ax :
3a ( a - x )
3a (a - 2x )
3a (3a - 2x)
3ax (3a - 2)
If x + 1/x = 8, then the value of x2 + 1/x2 is
66
68
61
62
If x = -3, y = 5. Find the value of x3y2 + 9x2y - xy + 12x + 15
276
-294
253
-276
One of the factors of x2 + 1/x2 +x - 2x -2/x is
x - 1/x
x + 1/x - 1
x+ 1/x
x2 + 1/x2
The value of x2 + 1/x2 when x - 1/x = 7 is
51
50
53
55
