If the side length is increased by a factor of 3, how much larger is the perimeter of a face of the new cube?
1 answer:
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Answer: B and D
Step-by-step explanation:
First, solve the terms inside of the parenthesis. As a general rule, whenever you multiply two terms that have the same base, you can add their exponents.
Applying this rule, the base in the problem is 6, and the exponents are 3 and -4. The sum of 3 and -4 leaves -1. Therefore, this is one of our solutions:
When you have an exponential term raised to another exponent, you can simply multiply the exponents. In the previous solution given above, multiply -1 and -3 to get 3. Therefore our second solution is:
If the question is supposed to be 
Now multiply both sides by 3 to get 3(-21)=-63=e
Now multiply both sides by 3 to get 3(-21)=-63=e