Question

5. If a = 1, b = – 2, C = – 1, show that 7a + b + c = 2abc​

Answer 1

Step-by-step explanation:

7(1)+(-2)+(-2)=2(1)(-2)(-1)

7-2-2=4

4=4

Answer 2

Answer:

Ur answer:

Given,

a=1, b=-2, c=-1

To Show:

7a+b+c=2abc

•L. H. S. ->

-----> 7a+b+c

=>7(1) +(-2) +(-1)

=>7-2-1

=>4

•R.H.S.->

------>2abc

=>2(1) (-2) (-1)

=>2(-2) (-1)

=>(-4) (-1)

=>4

Therefore, L. H. S. =R.H.S.

Step-by-step explanation:

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