The answer is either 4 or 8 I do believe
Since this is a 45-45-90 triangle, n = 9 and m = x
It is incorrect because when you times a negative by a positive. It is a negative number.
Assignment: 
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Answer: 
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Explanation: 
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[ Step One ] Remove Parenthesis (a) = a

[ Step Two ] Simplify Equations



[ Step Three ] Rewrite Equation

[ Step Four ] Add Similar Elements

[ Step Five ] Rewrite Equation

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