Автор - Slava0806

Упростите выражение 3c(c-2)-(c-3)-(c-1)

Ответ

Автор - IRikki
 3c(c-2)-(c-3)-(c-1)
²-6c-c+3-c+1
3c
² -8c + 4
a=3 b=8 c=4
d= 64-48
d=16=4
²
c1= -8-4/6 = -2
c2= -4/6

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