0
YES!!!!
x^(2) -16 =
x^(2) - 4^(2) =
Remember two squared terms with a NEGATIVE (=) between them , factors to
(x - 4)( x + 4)
Note the different signs.
Done
NB Two squared terms with a positive (+) between them DOES NOT factor.
x2 - 16 = (x + 4)(x - 4). For a polynomial a2 - b2 = (a + b)(a - b)
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