5x (2x + 4y) =
10x + 20yx
7x2 + 20y
10x2 + 20xy
None of these
(83)3 ÷ 84 =
85
86
84
8-1
8 p8 ÷ 4 p4 =
2p
2 p4
4 p2
4 p4
4(x + 4) =
4x + 4
4x + 8
4x + 16
x + 16
Solve 11n + 1 = 1.
12
10
0
-2/11
5(3c - 2) - 9c =
-6c - 10
6c - 10
6c + 10
-6c + 10
(98)3 =
93
98
924
911
Simplify a3(c2 + d2) - a3(2c2 + 3d2).
-(a3c2 - 2a3d2)
-(a3c2 + 2a3d2)
a3c2 + 2a3d2
If g = 3 calculate the value of 5g4.
317
375
395
405
Change the subject of the formula y = 3x + 8 to x.
x = y - 8
x = 1/3 y - 8/3
x = 3y - 8
x = 1/3 y + 8/3