решите систему уравнений. Created by karinazasimenk. algebra-ru

решите систему уравнений...

July 2022 1 8 Report

решите систему уравнений

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Checov7400 4х-6=у
4х²+(4х-6)²=8
4х²+16х²-48х+36-8=0
20х²-48х+28=0 (:4)
5х²-12х+7=0
D=144-4*7*5=4=2²
х1=(12-2)/10=1 х2=(12+2)/10=14/10=1,4
у1=4*1-6=-2 у2=4*1,4-6=-0,4

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