[x2 + x/y]2 =
x4 + 2x3/y + x2/y2
x4 - 2x3/y - x2/y2
x4 - 2x3/y + x2/y2
x4 + 2x2/y + x2/y2
(xy - yz)2
x2y2 - 2xy2z - y2z2
x2y2 - 2xy2z + y2z2
x2y2 + 2xy2z + y2z2
None of these
If a + b = 14, ab = 24, find a - b ?
3
8
10
9
(4x + 5y)2
16x2 + 40xy - 25y2
16x2 - 40xy + 25y2
16x2 + 40xy + 25y2
The value of p2 + q2 + r2, if P + q + r = 36 and pq + qr + rp = 148 is ___________
1000
40
12000
-1800
Evaluate (x + 1) (x - 2) (x + 3)
x3 - 2x2 - 5x - 6
x3 + 2x2 - 5x - 6
x3 - 2x2 + 5x + 6
In the expansion of [a + 1/2a]3, what is the coefficientof a ?
1/2
2/3
5/2
3/2
If 3a + 2b = 20, ab = 14/9, then the value of 27a3 + 8b3?
-7440
9561
7440
8123
[1/x - y/x]2
x2 + 2y/x2 + y2/x2
1/x2 + 2y/x2 + y2/x2
1/x2 - 2y/x2 + y2/x2
If (a - b)2 = 145, and a2 + b2 = 7, find ab?
60
-69
-51
-55
