How do you solve $1-2lnx=-4$ ?

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Answer 1 · 2018-04-29T11:37:59

Solution : $x ~~12.18$

$1 -2 ln x = -4 or -2 ln x = -4 -1$ or

$-2 ln x = -5 or ln x =5/2 or ln x = 2.5$

$:. x = e^2.5 ~~12.18(2 dp)$

Solution : $x ~~12.18$ [Ans]

Answer 2 · 2018-04-29T11:43:45

$e^(5/2)~=12.1824$

$1-2lnx=-4$

$-2lnx=-4 color(red)( -1)=-5$

$lnx=(-5)/(color(red)(-2))$

$lnx=5/2$

$color(green)(log_(a)c=b$

$color(green)(c=a^b$

$x=e^(5/2)~=12.1824$

How do you solve 1-2lnx=-41-2lnx=-4?