(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

I have a determinant to solve.

Fistrow is -2a, a + b, a+c

Second row is b + a, -2b, b + c

Third row is c+a, c+b, -2c

Prove that the determinant is equal to 4 (b +c) (c +a) (a + b)

2. Relevant equations

Not applicable.

3. The attempt at a solution

I have tried addig up rows and column both three at a time and two at a time. I am unable to find any common factor. This is one of my first sums, so I'msure I'm missing out on something.

Also, could you tell me how to enter a determinant at PhysicsForums?

1. The problem statement, all variables and given/known data

2. Relevant equations

3. The attempt at a solution

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# Homework Help: Solving a determinant to give it's factors

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