rsarth69
rsarth69
16-04-2014
Mathematics
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(3x-2y)2=how do you solve this?
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Аноним
Аноним
16-04-2014
[tex](3x-2y)^2=(3x)^2-2\cdot3x\cdot2y+(2y)^2=9x^2-12xy+4y^2\\\\\\\\(a-b)^2=a^2-2ab+b^2[/tex]
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