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Can someone show how to solve this?
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|dw:1383180945306:dw|
I am getting 1 because the negative exponents cancel eachother out but that is wrong ...
\(\dfrac{12^{-1}}{(-4)^{-1}} = \dfrac{(-4)^{+1}}{12^{+1}} = \dfrac{-4}{12}\)
I did it another way ill show...
|dw:1383181154147:dw|
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why wont I get the same answer by subtracting the rots?
you can also do this using fractions |dw:1383181218286:dw|
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