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Samara Maynard
Mathematics
9 May, 22:22
Factor completely. x^2-4
+4
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Gerardo Galloway
9 May, 22:37
0
(x - 2) (x + 2).
Step-by-step explanation:
This is the difference of 2 squares:
a^2 - b^2 = (a - b) (a + b)
So
x^2 - 4 = (x - 2) (x + 2).
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