Question

8. Simplify 3(a/2 + ab - 1)+5 - 2ab and find its value if a = 3 and b = 2.
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Answer 1

12.5

1.a/2=1.5

2.ab=6

3.So 3(a/2+ab-1)=19.5

4.19.5+5=24.5

5.24.5-2*6=12.5

Answer 2

Answer:

Step-by-step explanation:

3a/2+3ab-3+5-2ab

3(3)/2+3(3)(2)-3+5-2(3)(2)

9/2+18-3+5-12

9/2+23-15

9+46/2-15

55/2-15

55-30/2

25/2= 12.5