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ekaterinabragi
@ekaterinabragi
July 2022
2
9
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упростите выражение (х+у)(3х-у)-3х(у-х)
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meripoppins60
(х + у)(3х - у) - 3х(у - х) = 3х
² - ху + 3ху - у² - 3ху + 3х² =
6х² - ху - у
²
2 votes
Thanks 3
ekaterinabragi
спасибо большое
meripoppins60
Удачи
elenachesnokova
(х+у)(3х-у)-3х(у-х)=3x2-xy+3xy-y2-3xy+3x2=6x2-xy-y2
0 votes
Thanks 1
ekaterinabragi
спасибо
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