Question

Solve these please :
Algebraic expressions:
a) If m= 3 then find the value of 3m2 - 2m -7 (2)

b) From the sum of 3p + 2q and -5p + 6q, subtract the sum of 9p - 7q and -4p -2q​

Answer 1

Answer:

a) 3m²-2m-7

3(3)²-2(3)-7

3*9-6-7

27-6-7

14

b)3p+2q-5p+6q=8q+2p

9p-7q-4p-2q=5p-9q

adding both,

8q-2p+5p-9q

(3p-q)

Answer 2

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