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OpenStudy (anonymous):
(2x -1)²
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jhonyy9 (jhonyy9):
do you know (a-b)^2 = ?
OpenStudy (anonymous):
4x^2+1-4x
jhonyy9 (jhonyy9):
sure ?
OpenStudy (anonymous):
4x^2-4x+1
jhonyy9 (jhonyy9):
yes
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