-14
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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 + 4xx(x + 4)=======
Two numbers differing by 9 whose product is 112? 7 & 16 (x + 7)(x - 16)
x2-196 = (x-14)(x+14) when factored
X2 - 4= (x + 2)(x - 2)===========
X3 + 8= (x+2)(x2-2x+4)