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Herbert Boyer

Lvl 10
4y ago

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lenpollock

Lvl 16
7mo ago

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.

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Wiki User

14y ago

x2 - 16 = (x + 4)(x - 4). For a polynomial a2 - b2 = (a + b)(a - b)

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Anonymous

Lvl 1
4y ago

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Q: Can you factorise x2 - 16?
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