Is 21 a multiple of 6
1 answer:
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<h2>Explanation:</h2><h2></h2>
If we can write a polynomial in the form , then we can factor it as:
In this problem, we have the following expressions:
- For 1 and 4 we can't write this in the form
so this is not a difference of squares.
- For 2:
So we could write 2 as a difference of squares.
- For 3:
So we could write 2 as a difference of squares.