(x + 3) (x2 - 3 x + 9)
x3 + 27
x3 – 27
x3 - 9 x + 27
x3 + 81
If x2 + 1/x2 = 27, find the value of x - 1/x
5
29
√29
57
If 3 x + 2 y = 12, xy = 6 then the value of 9 x2 + 4 y2
- 72
72
- 74
- 76
A polynomial of degree 1 is called a
Linear polynomial
Quadratic polynomial
Cubic polynomial
None of these
If x + y = 9 and xy = 16, find the value of x2 + y2.
113
49
65
97
(3 x - y) (9 x2 + 3 xy + y2)=
9 x2 + y2
27 x3 - y3
27 x3 + y3
x2 - y2
If a + b = 8 and ab = 12 then a2 + b2 is
42
44
40
48
If (a x3 + 2)2 = a2x6 + x3 + 4, then a =
1
1/2
4
1/4
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
The value of expression 49 x2 - 84 xy + 36 y2, when x = 2 and y = 3 is
1600
160
16
1.6
