Factorize 6x + 9
3(2x + 3)
2(6x + 3)
3(3x + 2)
None of these
If x + a is a factor of x4 - a2x2 + 3x - a, then the value of a is
0
1
2
3
The value of x2 + 1/x2 when x - 1/x = 7 is
51
50
53
55
Simplify ( 4x2 – 9) ÷ ( 2x -3)
2x -3
2x + 3
x + 3
x - 3
If x = -3, y = 5. Find the value of x3y2 + 9x2y - xy + 12x + 15
276
-294
253
-276
-60x5 ÷ 5x2
-15x2
12x3
-12x7
-12x3
If x + 1/x = 8, then the value of x2 + 1/x2 is
66
68
61
62
Factorise ax + bx + ay + by .
( a + b ) (x +a )
( a + b ) (x + y )
( a + b ) ( x + b )
Divide 48 (p2qr + pq2r + pqr2) by 8pqr
-6(p + q + r)
6(p + q + r)
8(p + q + r)
(p + q + r)
If x = 7, find the value of the expression x3 + 7x2 + 4x + 2
748
685
716
694
