[1/x - y/x]2
x2 + 2y/x2 + y2/x2
1/x2 + 2y/x2 + y2/x2
1/x2 - 2y/x2 + y2/x2
None of these
If a2 (a + 3b) = 208 and b2 (3a + b) = 135, hat is a + b?
4
7
12
16
If (a - b)2 = 145, and a2 + b2 = 7, find ab?
60
-69
-51
-55
(xy - yz)2
x2y2 - 2xy2z - y2z2
x2y2 - 2xy2z + y2z2
x2y2 + 2xy2z + y2z2
[(x6)2 - (y6)3]2 find
(1/x)4 + 3x2/9
x24 - 2x12y18 + y36
(x + y)6 - 2y
Which is the term without x in the expansion of [x - 1/2]3?
-1/28
-1/16
-1/8
-1/18
Which is the term without n in the expansion of [n - 1/2]3 ?
-1/64
1/18
(x - 4) (x + 3) (x + 10)
x3 + 9x2 - 22x - 120
x3 - 9x2 + 22x + 120
x3 - 9x2 - 22x - 120
If 3a + 2b = 20, ab = 14/9, then the value of 27a3 + 8b3?
-7440
9561
7440
8123
Evaluate (x + 1) (x - 2) (x + 3)
x3 - 2x2 - 5x - 6
x3 + 2x2 - 5x - 6
x3 - 2x2 + 5x + 6
