[x2 + x/y]2 =
x4 + 2x3/y + x2/y2
x4 - 2x3/y - x2/y2
x4 - 2x3/y + x2/y2
x4 + 2x2/y + x2/y2
If (a - b)2 = 145, and a2 + b2 = 7, find ab?
60
-69
-51
-55
If a2 (a + 3b) = p and b2 (3a + b)= q, what is (a + b)3 in terms of p and q
p/q
q - 1/p
p + q
p + q/pq
If a + b = 14, ab = 24, find a - b ?
3
8
10
9
Which is the term without n in the expansion of [n - 1/2]3 ?
-1/64
-1/16
-1/8
1/18
(xy - yz)2
x2y2 - 2xy2z - y2z2
x2y2 - 2xy2z + y2z2
x2y2 + 2xy2z + y2z2
None of these
If 3a + 2b = 10, a = 14/9, find 27a3 + 8b3?
-740
960
720
810
If 3a + 2b = 20, ab = 14/9, then the value of 27a3 + 8b3?
-7440
9561
7440
8123
If a2 + b2 + c2 = 29, and ab + bc + ca = 28, the value of (a + b + c)2 is?
-85
25
85
95
If a2 (a + 3b) = 208 and b2 (3a + b) = 135, hat is a + b?
4
7
12
16
