Question

*. Simplify the following expressions and find their
values if a = 1, b = 2,c= - 1
(i) 3 a×2+ b×2 + c×2 -4ab-a×2+3ab-5ac+4ab-bc​

Answer 1

Answer:

6+4-1-8-2+6+5+8+2= 20

Answer 2

Answer:

6+4-2-8-2+6+5+8+2 = 19