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Ученик0005205
@Ученик0005205
July 2022
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решите уравнение:
(15у-24)*(3у-0,9)=0
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Twentyonepilots22
(15у - 24) * (3у-0,9)=0
45у² - 72у - 13,5у + 21,6 = 0
45у² - 85,5у + 21,6=0
D=(-85,5)² - 4 * 45 * 21,6 = 3422,25
х1 = (85,5-√3422,25)/2*45 => х1 = 0,3
х2 = (85,5+√3422,25)/2*45 => х2 = 480
0 votes
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karpovak1
(15y-24)*(3y-0,9)=0
45y(2)-13,5y-72y+21,6=0
-40,5y
2 votes
Thanks 0
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Answers & Comments
45у² - 72у - 13,5у + 21,6 = 0
45у² - 85,5у + 21,6=0
D=(-85,5)² - 4 * 45 * 21,6 = 3422,25
х1 = (85,5-√3422,25)/2*45 => х1 = 0,3
х2 = (85,5+√3422,25)/2*45 => х2 = 480
45y(2)-13,5y-72y+21,6=0
-40,5y