Simplify 3p + 7q - 2p - 5q.
p + 2q
p + q
2p + q
2p + 2q
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
Simplify 4(y + 3) - 3(2y - 1).
- 2y + 15
2y + 15
2y - 15
- 2y - 15
77 ÷ 7 =
78
76
77
7
If x = 2, y = - 3 and z = 4, find the value of 3x + y + z.
1
2
4
Find the value of 4-1 × 40 × 43.
16
8
0
Simplify a3(c2 + d2) - a3(2c2 + 3d2).
-(a3c2 - 2a3d2)
-(a3c2 + 2a3d2)
a3c2 + 2a3d2
None of these
8 p8 ÷ 4 p4 =
2p
2 p4
4 p2
4 p4
Simplify 63 × 62 × 67.
18
1812
69
612
(98)3 =
93
98
924
911
