Question

If a=1 b=2 and c=-1 find the value of 6a -4ca -a +3ab -5ac +4ab -bc

Answer 1

Answer:

Substitute a,b,c values in given expression

we get

6(1)-4(-1)(1)-1+3(1)(2)-5(1)(-1)+4(1)(2)-(-1)(1)

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

=10-1+20

=30-1

=29