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Kbandurko
@Kbandurko
June 2022
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Решите систему уравнений, распишите решение
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KABYKENOV
5) у=6-2х
2х(6-2х)=5
12х-4х²=5
4х²-12х+5=0
Д=144-4*20=64 √64=8
х1=12-8/8=0,5
х2=12+8/8=2,5
1 votes
Thanks 1
prudniknick
3) y(6+y)+6+y= -4
x=6+y
y²+7y+10=0
x= -5
x= -2
0 votes
Thanks 0
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Answers & Comments
2х(6-2х)=5
12х-4х²=5
4х²-12х+5=0
Д=144-4*20=64 √64=8
х1=12-8/8=0,5
х2=12+8/8=2,5
x=6+y
y²+7y+10=0
x= -5
x= -2