Question

if a=1, b=2 and c=3, then find the value of: 3ab+2bc-ac

Answer 1

Answer:

6 + 12 - 3

18 - 3

15

Answer 2

Answer:

15

Step-by-step explanation:

ab=1×2=2

3ab=3×2=6

similarly,

2bc=2×2×3=12

and

ac=1×3=3

3ab+2bc-ac=6+12-3=15