If a2 + b2 + c2 = 29, and ab + bc + ca = 28, the value of (a + b + c)2 is?
-85
25
85
95
Which is the term without n in the expansion of [n - 1/2]3 ?
-1/64
-1/16
-1/8
1/18
The value of p2 + q2 + r2, if P + q + r = 36 and pq + qr + rp = 148 is ___________
1000
40
12000
-1800
[x2 + x/y]2 =
x4 + 2x3/y + x2/y2
x4 - 2x3/y - x2/y2
x4 - 2x3/y + x2/y2
x4 + 2x2/y + x2/y2
Simplify (2x - 3)3 + (2x + 3)3
16x3 + 108x
8x3 + 102x3
4x3 + 120x3
8x3 - 108x3
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
(x - 4) (x + 3) (x + 10)
x3 + 9x2 - 22x - 120
x3 - 9x2 + 22x + 120
x3 - 9x2 - 22x - 120
None of these
If a2 + b2 + c2 = 29 and ab + bc + ac = 28, find the value of (a + b + c)2 ?
100
150
14
Evaluate (x + 1) (x - 2) (x + 3)
x3 - 2x2 - 5x - 6
x3 + 2x2 - 5x - 6
x3 - 2x2 + 5x + 6
If (a - b)2 = 145, and a2 + b2 = 7, find ab?
60
-69
-51
-55