logx1/4=-2 equation
The teacher will be very surprised to see your correct solution 😉
The solution
Detail solution
Given the equation
log ( x ) 4 = − 2 \frac{\log{\left(x \right)}}{4} = -2 4 log ( x ) = − 2 log ( x ) 4 = − 2 \frac{\log{\left(x \right)}}{4} = -2 4 log ( x ) = − 2 Let's divide both parts of the equation by the multiplier of log =1/4
log ( x ) = − 8 \log{\left(x \right)} = -8 log ( x ) = − 8 This equation is of the form:
log(v)=p By definition log
v=e^p then
-2
---
1/4
x = e simplify
x = e − 8 x = e^{-8} x = e − 8
The graph
-12.5 -10.0 -7.5 -5.0 -2.5 0.0 2.5 5.0 7.5 10.0 12.5 15.0 2.5 -2.5
x 1 = e − 8 x_{1} = e^{-8} x 1 = e − 8
Sum and product of roots
[src]
x1 = 0.000335462627902512
x1 = 0.000335462627902512