Question #a16c4

1 Answer
Jo S.
Oct 30, 2017

I get 14:−1, but may be misreading the question.

Explanation:

I'm answering the question:
Find [(−2)15+(−2)12]:[(−2)11+(−2)12] in its simplest form.
If this is not the question you intended, please correct me!
Dividing both sides of the ratio by (−2)11 gives:
[(−2)4+(−2)]:[1+(−2)]
Applying the indices gives:
[16+−2]:[1+−2]=14:−1

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