SOLUTION: x^2-4 factor to

Question 720551: x^2-4 factor to
Answer by ramsinaaa(9) (Show Source): You can put this solution on YOUR website!
(x+2)(x-2)

whenever you have (x^2 - a perfect square) the factored form is always (x+the square)(x-the square).
because the middle term will always cancel out

EXAMPLES:
x^2-4
x^2-9
x^2-16
x^2-25
etc
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