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Lolkaok
@Lolkaok
September 2021
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Хелпаните СРОЧНО! Нужно решить уравнения за 7 класс
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гюйс
Verified answer
(х+1)³ -х²(х+3)+2=0
х³+3х²+3х+1 -х³ -3х²+2=0
3х+3=0
3х= -3
х=-1
(х-2)³ -х²(х-6)-4=0
х³-6х²+12х-8-х³+6х²-4=0
12х - 12х0
12х=12
х=1
(2х+1)³ -4х²(2х+3)-7=0
8х³+12х²+6х+1 - 8х³ -12х² -7=0
6х -6=0
6х=6
х=1
(2х-3)³ -4х²(2х-9)=0
8х³ - 36х²+54х-27-8х³+36х²=0
54х -27=0
54х=27
х=0,5
(1 -2х)³ -12х² +8х³=0
1-6х+12х² -12х²-8х³=0
1 -6х=0
6х= -1
х= - 1/6
2 votes
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Answers & Comments
Verified answer
(х+1)³ -х²(х+3)+2=0х³+3х²+3х+1 -х³ -3х²+2=0
3х+3=0
3х= -3
х=-1
(х-2)³ -х²(х-6)-4=0
х³-6х²+12х-8-х³+6х²-4=0
12х - 12х0
12х=12
х=1
(2х+1)³ -4х²(2х+3)-7=0
8х³+12х²+6х+1 - 8х³ -12х² -7=0
6х -6=0
6х=6
х=1
(2х-3)³ -4х²(2х-9)=0
8х³ - 36х²+54х-27-8х³+36х²=0
54х -27=0
54х=27
х=0,5
(1 -2х)³ -12х² +8х³=0
1-6х+12х² -12х²-8х³=0
1 -6х=0
6х= -1
х= - 1/6