In 2013 a wildfire near yosemite National park burned about 400 square miles of forest. If one square mile equals 640 ares, abou
1 answer:
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Answer:
A
Step-by-step explanation:
We take a look at this expression: and notice that both terms are square numbers.
and
.
There is a specific formula that I highly recommend you memorize involving differences of squares. It states that given the difference of squares , it can always be factored into
.
Here, we can apply that. In this case, a = 7x and b = 3. So:
Thus, the answer is A.
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See the attachment below gor graph
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