If a = b + c, then a^{3} - b^{3} - c^{3} =
abc
3abc
2abc
None of these
[x^{2} + x/y]^{2 }=
x^{4} + 2x^{3}/y + x^{2}/y^{2}
x^{4} - 2x^{3}/y - x^{2}/y^{2}
x^{4} - 2x^{3}/y + x^{2}/y^{2}
x^{4} + 2x^{2}/y + x^{2}/y^{2}
[(x^{6})^{2} - (y^{6})^{3}]^{2} find
(1/x)^{4} + 3x^{2}/9
x^{24} - 2x^{12}y^{18} + y^{36}
(x + y)^{6} - 2y
[1/x - y/x]^{2}
x^{2} + 2y/x^{2} + y^{2}/x^{2}
1/x^{2} + 2y/x^{2} + y^{2}/x^{2}
1/x^{2} - 2y/x^{2} + y^{2}/x^{2}
If 3a + 2b = 20, ab = 14/9, then the value of 27a^{3} + 8b^{3}?
-7440
9561
7440
8123
If a + b = 14, ab = 24, find a - b ?
3
8
10
9
If 3a + 2b = 10, a = 14/9, find 27a^{3} + 8b^{3}?
-740
960
720
810
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 p^{2} + q^{2} + r^{2}, if P + q + r = 36 and pq + qr + rp = 148 is ___________
1000
40
12000
-1800
(4x + 5y)^{2 }
16x^{2} + 40xy - 25y^{2 }
16x^{2} - 40xy + 25y^{2}
16x^{2} + 40xy + 25y^{2}