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dana23456
@dana23456
July 2022
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Решите уравнение: 9x2-13x+4=0
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SuperNinja80lvl
9х^2-13х+4=0
D=b^2-4ac=169-4*9*4=169-144=25
√25=5
x1=(-b+√D)/2a=(13+5)/2*9=18/18=1
x2=(-b-√D)/2a=(13-5)/2*9=8/18=
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Answers & Comments
D=b^2-4ac=169-4*9*4=169-144=25
√25=5
x1=(-b+√D)/2a=(13+5)/2*9=18/18=1
x2=(-b-√D)/2a=(13-5)/2*9=8/18=