The sum of two numbers is 70 and their difference is 30. Find the two numbers
1 answer:
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Start by distributing the exponent to each of the terms in . This will become
, and
. Now, the expression is:
.
We can now simplify the bottom to read: because when multiplying variables raised to an exponent, we add the exponents. The expression now looks like:
The 2/8 simplifies to 1/4:
Now, we have two u terms on the top and bottom. When dividing variables raised to an exponent, we subtract the exponents. However, since 3-5=-2, the term will be on the bottom to avoid the negative exponent. The final answer is:
Hope this makes sense!!