Lee buys h packs of hotdogs and b packs of buns for a party. Hotdogs come in packs of 8 and buns come in packs of 12. Write an expression for the total number of hotdogs and buns bought, in terms of h and b.
12h + 8b
8h + 12b
96bh
Simplify the following expression: 3s2 + 6s - s2 - 8s.
18s2
0
2s2 - 2s
Simplify 4e × 2ef.
8e2f
8ef2
(8ef)2
Simplify 24ab2 ÷ 6b
4
4ab
4b
Expand 4(2m - 7).
8m – 28
6m – 11
6m - 7
Expand and simplify 5 + 2(3a + 7).
21a + 49
21a + 7
6a + 19
Expand (p + 2)(p ‒ 4).
p2 – 8
2p – 2
p2 – 2p – 8
Factorise 4x2 - 14xy fully.
x(4x - 14y)
2x(2x - 7y)
2(2x2 - 7xy)
Factorise the quadratic 2x2 + x – 3
(2x - 2)(4x - 4)
(2x + 3)(x - 1)
(2x + 1)(x - 3)
Factorise h2 + 3h + 2.
(h + 2)(h+1)
(h + 3)(h+2)
h(h + 3) + 2