If x = 7, find the value of the expression x3 + 7x2 + 4x + 2
748
685
716
694
Factorise 9a2 - 6ax :
3a ( a - x )
3a (a - 2x )
3a (3a - 2x)
3ax (3a - 2)
Factorize 6x + 9
3(2x + 3)
2(6x + 3)
3(3x + 2)
None of these
Factorise ax + bx + ay + by .
( a + b ) (x +a )
( a + b ) (x + y )
( a + b ) ( x + b )
If (x + 1) is a factor of 2x3 - x2 - (2a -3)x + 2, then the value of 'a' is
3
2
3/2
1/2
Divide 48 (p2qr + pq2r + pqr2) by 8pqr
-6(p + q + r)
6(p + q + r)
8(p + q + r)
(p + q + r)
-60x5 ÷ 5x2
-15x2
12x3
-12x7
-12x3
x3 ÷ x3 =
0
1
x
Factorize 21a2bc + 28ab2c + 35abc2
7a2bc(3a + 4b + 5c)
3ab2c(3a + 46 + 5c)
7abc(3a + 4b + 5c)
7ab2c(3a + 4 + 5c)
One of the factors of x2 + 1/x2 +x - 2x -2/x is
x - 1/x
x + 1/x - 1
x+ 1/x
x2 + 1/x2
