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kamidzuki
@kamidzuki
July 2022
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уравнение. потом запишите сумму корней.
x²-8x+15+0
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цой484
Д=в²-4ас= -8²-4•15=64-60=4
х1=(-в+√Д)/2а=(8+2)/2=5
х2=(-в-√Д)/2а=(8-2)/2=3
х1+х2=5+3=8
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Answers & Comments
х1=(-в+√Д)/2а=(8+2)/2=5
х2=(-в-√Д)/2а=(8-2)/2=3
х1+х2=5+3=8