How to factor 1-49c^2

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Bart Gloudemans · Answer 1 · 2017-04-25T20:06:36+0000

ok so this is a difference of 2 perfect squares
1=1^2
49c^2=(7c)^2
to factor you remember
a^2-b^2=(a+b)(a-b) so

1^2-(7c)^2=(1+7c)(1-7c)