please ans the question to me
Attachments:
Answers
Answered by
0
Answer:
i)
9-5m
m=2
that is
9-5×2
9-10
=-1
ii)
3m²-2m-7
m=2
that is
3×2²-2×2-7
3×4-4-7
12-11
=1
iii)
(5m/2)-4
m=2
that is
(5×2/2)-4
5-4
=1
Hope it helps
Answered by
0
Answer:
1. -1.
2. 25.
3. 1.
Step-by-step explanation:
1. 9 - 2m
= the value of m= 2
=9-5×2
=9 - 10
= -1
2. 3m2 - 2m - 7
= 3×2 2(square) - 2×2 - 7
= 6 2(square) - 4 - 7
= 6×6 - 4 - 7
= 36 - 4 - 7
= 32 - 7
= 25
3. (5m/2) - 4
= (5×2/2) - 4
= (10/2) - 4
= 5 - 4
= 1.
Similar questions