SOLUTION: 10. Simplify: �(�(�7))

Question 65227: 10. Simplify: �(�(�7))
Found 2 solutions by stanbon, funmath:
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
= -7
Cheers,
Stan H.
Answer by funmath(2933) (Show Source): You can put this solution on YOUR website!
There's a trick that you can remember to make this easier, when multiplying like this, if you have an odd number of - signs the answer is negative, if there is an even number of - signs, the answer is positive.
10. Simplify: �(�(�7))
In this case you have 3 - signs, three is odd so the answer is -7
:
If you had of had -(-(-(-(-(-7))))), there are 6 - signs, six is even so the answer would be +7.
Happy Calculating!!!
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