<em>B</em><em>. 6.1 inches </em>
<h2>Step-by-step explanation:</h2>You find third square root of 231
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The letters can be added together if they have similar variables.
B and C are like terms. Option B shows the like terms of letters.
<h3>What is a binomial?</h3><h3></h3>A mathematical expression consisting of two terms connected by a plus sign or minus sign is called the binomial expression.
The attachment shows the table of letters and variables.
To multiply binomials, a form of the distributive property is used.
The table has been complete with the final values of letters which are given below.
From the final values of letters, B and C are the only like terms, they can be added together since they have similar variables.
Hence we can conclude that B and C are like terms. Option B shows the like terms of letters.
To know more about the binomials, follow the link given below.
