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AnetaFenux
@AnetaFenux
August 2022
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сократите дробь : 2а - 1 (числитель). 10а² - а - 2 (знаменатель)
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Верона111111
2a-1 2a-1 2a-1 1
10a2-a-2=10(a-0,5)(a+0,4)=(2a-1)(5a+2)=5a+2
10a2-a-2=0
a=10,b=-1, c=-2
D=1+80=81
a=(1+9)/20=0,5
a=(1-9)/20=-0,4
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Answers & Comments
10a2-a-2=10(a-0,5)(a+0,4)=(2a-1)(5a+2)=5a+2
10a2-a-2=0
a=10,b=-1, c=-2
D=1+80=81
a=(1+9)/20=0,5
a=(1-9)/20=-0,4