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velinnn
@velinnn
September 2021
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DidYouMIssMe
1) 3(х-2)>x-12 5)x-1/5 -2x<2
3x-6>x-12 x-1-10x-10<0
2x>-6 -9x-11<0
x>-3 9x>-11
2)1,8x+6<=3(0,7x-0,1) x>-11/9
1,8x+6<=2,1x-0,3
0,3x>=6,3
x>=3,1
3)3(x+1)-2(2-x)>-11
3x+3-4+2x>-11
5x>-10
x>-2
4)(x+3)(x-3)<=(x+3)^2
x^2-9<=x^2+6x+9
-18<=0
Ответ: при лбом значении х
2 votes
Thanks 1
аружан08077
3(х-2)>х-12
3х-6>х-12
3х-х>-6-12
3х^2>-18
х=-18:3
х=6
0 votes
Thanks 0
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Answers & Comments
3x-6>x-12 x-1-10x-10<0
2x>-6 -9x-11<0
x>-3 9x>-11
2)1,8x+6<=3(0,7x-0,1) x>-11/9
1,8x+6<=2,1x-0,3
0,3x>=6,3
x>=3,1
3)3(x+1)-2(2-x)>-11
3x+3-4+2x>-11
5x>-10
x>-2
4)(x+3)(x-3)<=(x+3)^2
x^2-9<=x^2+6x+9
-18<=0
Ответ: при лбом значении х
3х-6>х-12
3х-х>-6-12
3х^2>-18
х=-18:3
х=6