Question the-ex

2.4 Equivalent Expressions - Simplifying polynomials
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The expression one-third x squared, minus 2 can be rewritten as one-third times, open parenthesis, x minus k, close parenthesis, times, open parenthesis, x plus k, close parenthesis, where k is a positive constant. What is the value of k ?

A.

the square root of 2

B.

2

C.

6

D.

the square root of 6