1022 =
204
10404
10400
102
(3 x - y) (9 x2 + 3 xy + y2)=
9 x2 + y2
27 x3 - y3
27 x3 + y3
x2 - y2
(x + 3) (x2 - 3 x + 9)
x3 + 27
x3 – 27
x3 - 9 x + 27
x3 + 81
If x + y = 9 and xy = 16, find the value of x2 + y2.
113
49
65
97
(-3 x2) + (6 x2) + (-x2) + 4 x2 =
6 x2
14 x2
-6 x2
7 x2
If A = x2 - 2 x - 5, then the additive inverse of A is
-5 - 2 x + x2
x2 + 2 x + 5
-x2 - 2 x + 5
-x2 + 2 x + 5
If (a x3 + 2)2 = a2x6 + x3 + 4, then a =
1
1/2
4
1/4
If x = 5/4 then the value of 16 x2 + 24 x + 9 is
68
64
81
The degree of 5 x7 - 4 x3 + 2 x2 is
12
7
6
None of these
