a + b = 8, ab = 15 then a3+b3
130
148
152
174
(-3 x2) + (6 x2) + (-x2) + 4 x2 =
6 x2
14 x2
-6 x2
7 x2
If x = 1, y = -1 and z = -1 , find the value of x3 + y3 + z3 - 3xyz.
-4
2
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
(3 x - y) (9 x2 + 3 xy + y2)=
9 x2 + y2
27 x3 - y3
27 x3 + y3
9 x2 - y2
1022=
204
10404
10400
102
The quotient when x2-x-6 is divided by x+2.
x-3
x-2
x+2
x
To calculate 103 x 97, which of the following is use to find the above product?
(a+b)2
(a-b)2
(a+b)(a-b)
a3+b3
(x+3)(x-5)=
x2- 15
x2+15
x2-2 x- 15
x2+2 x- 15
If x = 2 then (1/2) x3 is
8
4
1
