Factorise 3m3 - 6m2 :
3m (m -2 )
3m2 (m-2)
3m2 ( m + 2 )
3m (m2 - 2)
x3 ÷ x3 =
0
1
x
None of these
If (x + 1) is a factor of x2 - 3ax + 3a - 7, then the value of a is
-1
-2
The solution of the equation 3 (x - 5) = 5x- 27 is
x = 6
x = 5
x = 4
x = 3
If x = 7, find the value of the expression x3 + 7x2 + 4x + 2
748
685
716
694
If x = -3, y = 5. Find the value of x3y2 + 9x2y - xy + 12x + 15
276
-294
253
-276
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)
The product of (2a - 5b)(a + 3b) is
2a2 - ab + 15b2
2a2 + ab + 15b2
2a2 + ab - 15b2
Factorize 6x + 9
3(2x + 3)
2(6x + 3)
3(3x + 2)