Question

EXERCISE 12.3
4
1. Im=2, find the value of:
(1) m - 2
(ii) 3т
5
(iii) 9.5m
Sm
(iv) 3m? - 2m - 7 (v)
2.
2. Ifp=- 2, find the value of:
(1) 4p + 7 (ii) – 3p² + 4p + 7
(iii) - 2p' - 3p? +
3. Find the value of the following expressions, when x =-1:
(1) 27-7
(ii) - X + 2
(iii) x² + 2x + 1
(iv) 2r- x - 2
4. If a= 2. b = -2, find the value of:
(i) aº+b-
(ii) ( + ab + b (iii) a? - b?
5. When a =0,b=-1, find the value of the given expressions:
(1) 20+ 2h
(ii) 29% + b2 + 1 (ii) 2a²b + 2a​

Answer 1

badiya he yaar

Step-by-step explanation:

2 + G > 10 (as its resulting a carry 1 on next); Now, possible values of G to get 1 carry at next step is – {G = 8 or 9}.

Missing: 3A5+ ‎62B