6x - 2(x + 5) =
12x - 10
12x + 10
4x - 10
4x + 10
4(x + 4) =
4x + 4
4x + 8
4x + 16
x + 16
3a (a + 3) + 2b (b - 1) =
3a2 + 9a + 2b2 - 2b
3a2 - 9a + 2b2 - 2b
3a2 + 9a - 2b2 + 2b
None of these
4c2(a2 - 2b2 + d2) =
4c2a2 - 8c2b2 - 4c2d2
4c2a2 + 8c2b2 + 4c2d2
4c2a2 - 8c2b2 + 4c2d2
Factorise 33ac2 + 55c3 - 11 b2c2
11c (3a + 5c - b2)
11c2 (3ac + 5c - b2)
11c2 (3a + 5c2 - b2)
11c2 (3a + 5c - b2)
(32)0 =
0
1
9
320
8 p8 ÷ 4 p4 =
2p
2 p4
4 p2
4 p4
6b3c + b2c2 =
b2c(6bc + c)
b2c(6b + c)
b2(6bc + c)
6(3 + 2y) =
9 + 12y
18 + 12y
18 + 2y
Solve 11n + 1 = 1.
12
10
-2/11
