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juulikene
@juulikene
June 2022
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5х^2 = 22x + 15
значение х
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yellok
5x²=22x+15
5x²-22x-15=0
D=11²+15*5=121+75=196
x(1)=(11-√196)/5=(11-14)/5=-3/5
x(2)=(11+√196)/5=(11+14)/5=25/5=5
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Answers & Comments
5x²-22x-15=0
D=11²+15*5=121+75=196
x(1)=(11-√196)/5=(11-14)/5=-3/5
x(2)=(11+√196)/5=(11+14)/5=25/5=5