Question

If a = 1, b = -2, C = -1, show that 7a + b + c = 2abc​

Answer 1

Answer:

4=4

Step-by-step explanation:

7a+b+c=2abc

As we know

a=1

b= -2

c= -1

=>7×1+(-2)+(-1)=2×1×-2×-1

=>7-2-1=2×2

=>5-1=4

=>4=4

Hence proved.

Answer 2

7a + b+ c = 2abc

7×1 + (-2) + (-1) = 2×1×-2×-1

7-2-1=4

4=4

hence proved that 7a+b+c=2abc