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masyhjdfutrtd
@masyhjdfutrtd
July 2022
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Alexandr130398
1) ОДЗ: x²+2x≠0 x(x+2)≠0 x≠0
x²-2x≠0 ⇔ x(x-2)≠0 ⇔ x≠2
x≠0
x≠0 x
≠-2
x=0 - не удовлетворяет ОДЗ
ОТВ: 4; -10
2) ОДЗ: x²+4x+4≠0 (х+2)²≠0 х≠-2
х²-4≠0 ⇔ (х-2)(х+2)≠0 ⇔ х≠2
2-х≠0 х≠2
х=2 - не удовл. ОДЗ
ОТВ: 1
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Answers & Comments
x²-2x≠0 ⇔ x(x-2)≠0 ⇔ x≠2
x≠0 x≠0 x≠-2
x=0 - не удовлетворяет ОДЗ
ОТВ: 4; -10
2) ОДЗ: x²+4x+4≠0 (х+2)²≠0 х≠-2
х²-4≠0 ⇔ (х-2)(х+2)≠0 ⇔ х≠2
2-х≠0 х≠2
х=2 - не удовл. ОДЗ
ОТВ: 1