26.11 а) б) ..................... Created by elnara1103. algebra-ru

26.11 а) б)...

July 2022 1 7 Report

26.11 а) б)
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n1982 3х(х+1)+4(х-1)=6 х≠1 х≠-1
3х²+3х+4х-4-6=0
3х²+7х-10=0
D=49+120=169
х=1 не корень
х=-20/6=-10/3

б)х(х+5)-6(х-5)=3х+35 х≠5 х≠-5
х²+5х-6х+30-3х-35=0
х²-4х-5=0
D=16+20=36
х=5 не корень
х=-1

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