How would you factor x^2-c^2

[From: ] [author: ] [Date: 11-10-27] [Hit: ]

difference of squares.

(x-c)(x+c)

c will be a constant.Let's make c=2 so c^2=4

x^2-4
(x+2)(x-2)
FOIL it to check x^2-2x+2x-4
x^2-4

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