(x+3)(x-5)=
x2- 15
x2+15
x2-2 x- 15
x2+2 x- 15
The quotient when x2-x-6 is divided by x+2.
x-3
x-2
x+2
x
If x+1/x = 3 then x2 + 1/x2 =
9
7
6
3
(2 x -3 y) - (x - y) =
3 x - 4 y
x - 2 y
3 x - 2 y
x - 4 y
If a-1/a =b then a2+1/a2
b2
b2+2
b2- 1/b2
b2-2
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 x = 2 then (1/2) x3 is
8
2
4
1
1022=
204
10404
10400
102
If x = 1, y = -1 and z = -1 , find the value of x3 + y3 + z3 - 3xyz.
-4
0
16
Which of the following is a false statement ?
A + B = B + A
A . B = B. A
A / B = A .1/B
A-B= B-A
