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Mathematics 13 Online
OpenStudy (anonymous):

@ankit042

OpenStudy (anonymous):

OpenStudy (mathmath333):

\(\Large\rm (a+b)^2=a^2+2ab+b^2\) \(\Large\rm (a-b)^2=a^2-2ab+b^2\)

OpenStudy (mathmath333):

before \(\Large\rm b^2\) there will be never a minus\(\large\rm (-)\) sign in a perfect square

OpenStudy (anonymous):

C? @mathmath333

OpenStudy (mathmath333):

yes

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