Остаток 2
445375:3=1485701(ост.2)
<span>3(-5+с)-2(с-4)=2-7(с-1)</span>
<span>-15+3с-2с+8=2-7с+7</span>
3с-2с+7с=2+7+15-8
8с=16
с=16/8=2
<span>3x^2-6x+a=0
Д = 36 -4 х 3а = 36-12а =0</span>
<span />36 - 12а =0
-12а = -36
а = -36 : (-12)
<span> а = 3
</span>
£1)
1. 94,3-4,6=20,5
2. 1,75×0,6=1,05
3. 20,5-1,05= 19,45
Отв:19,45
£2
-9а-1 или -(9а+1)