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diominkirill
@diominkirill
July 2022
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sedinalana
Verified answer
1
5^(-0,6x-3)=5²
-0,6x-3=2
0,6x=-5
x=-5:0,6
x=-8 1/3
2
ОДЗ
2x-4>0⇒x>2
2x-4=128
2x=132
x=66
3
ОДЗ2x+5>0⇒x>-2,5
log(1/7)(2x+5)=log(1/7)6+log(1/7)2
log(1/7)(2x+5)=log(1/7)12
2x+5=12
2x=7
x=3,5
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Answers & Comments
Verified answer
15^(-0,6x-3)=5²
-0,6x-3=2
0,6x=-5
x=-5:0,6
x=-8 1/3
2
ОДЗ
2x-4>0⇒x>2
2x-4=128
2x=132
x=66
3
ОДЗ2x+5>0⇒x>-2,5
log(1/7)(2x+5)=log(1/7)6+log(1/7)2
log(1/7)(2x+5)=log(1/7)12
2x+5=12
2x=7
x=3,5