A rectangular prism has a length of 4
1 answer:
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Answer: First option.
Step-by-step explanation:
You need to remember that to factorize the given expression , you need to choose two numbers that when you add them you get "10" and when you multiply them you get "21".
These number are:
7 and 3
Because:
Therefore, you get that the factorization of the expression is the following:
You can observe that this factorization matches with the first option.