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Mathematics
Nikhil Stevens
15 January, 09:34
How to Factor 4x^2 - 121
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Judah Bullock
15 January, 13:24
0
Difference of 2 perfect squares
for
a^2-b^2 = (a-b) (a+b)
so
(2x) ^2 - (11) ^2 = (2x-11) (2x+11)
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