Question

4. If x= 4, evaluate :
(i) 3x + 8
(ii) x2 - 2x
2
5. If m = 6, evaluate :
(i) 5m - 6
6. If x = 4, evaluate :
(iii) (2m)2
(ii) 2m2 + 3m
(ii) 5x2 + 4x
(i) 12x + 7
00/X
8
7. If m = 2, evaluate :
1
(iii)
(ii) 15m? – 10m S =
m3
4
(i) 16m - 7
8. If x = 10, evaluate :
1
+3
(i) 100x + 225
(ii) 6x2 – 25x
50
(ii) a2
(iii) a
9. If a = -10, evaluate :
(i) 5a
10. If x= -6, evaluate :
X-
(iii) 2x3
12​

Answer 1

Answer:

when x=4

3x + 8

= 3×4+8

= 12+8

= 20

x²-2x

= 4²-2×4

= 16-8

= 8

when m = 6

5m - 6

= 5×6 -6

= 30-6

= 24