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Tatyanushka
@Tatyanushka
August 2022
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маслёнок95
2) 2х=1/2
х=1/4
3)2^3х=2^(-2)
3х=-2
х=-2/3
4)(7/3)^(4х-х²+1)=(3/7)^4
(7/3)^(4х-х²+1)=(7/3)^(-4)
4х-х²+1=-4
х²-4х-5=0
Д=4²-4*1*(-5)=16+20=36=6²
х1=(4-6)/2*1=-2/2=-1
х1=(4+6)/2*1=10/2=5
5)(3/2)^(3(х-1))=(2/3)^2
(3/2)^(3х-3)=(3/2)^(-2)
3х-3=-2
3х=1
х=1/3
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Answers & Comments
х=1/4
3)2^3х=2^(-2)
3х=-2
х=-2/3
4)(7/3)^(4х-х²+1)=(3/7)^4
(7/3)^(4х-х²+1)=(7/3)^(-4)
4х-х²+1=-4
х²-4х-5=0
Д=4²-4*1*(-5)=16+20=36=6²
х1=(4-6)/2*1=-2/2=-1
х1=(4+6)/2*1=10/2=5
5)(3/2)^(3(х-1))=(2/3)^2
(3/2)^(3х-3)=(3/2)^(-2)
3х-3=-2
3х=1
х=1/3