Question

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

Answer 1

Answer:

4

Step-by-step explanation:

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

LHS = 7a+b+c

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

= 7+ (-3)

= 4

RHS = 2abc

= 2*1*(-2)*(-1)

= (-4)*(-1)

= 4

Therefore, LHS = RHS

Hence proved.