Question

fins the product of (a+b+c) (a+b+c)
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Answer 1

Answer:

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Step-by-step explanation:

Answer 2

Answer:

(a+b+c) = 2

(a+b-c) = -2

Step-by-step explanation:

According to question a = 1,b = -1, c = 2

(a+b+c) = 1 + (-1) + 2

= 0+2

= 2

(a+b-c) = 1+(-1)-2

= 0-2

= 2