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alinakaracheva2
@alinakaracheva2
October 2021
1
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Упростите выражение (b+4)^2-2b(5b+4)
(b-2)^2-2b(6b-2)
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MrsRasta
(b+4)²-2b(5b+4)=b²+16b+16-10b²-8b=-9b²+8b+16
(b-2)
²
-2b(6b-2)=b
²-4b+4-12b²+4b=-11b²+4
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Answers & Comments
(b-2)²-2b(6b-2)=b²-4b+4-12b²+4b=-11b²+4