811 is the correct awnser
By defferentiating the about using product rule
vdyu/dx +udvdx
dy/dx 4×^3 +6×^2-4× -4=o
Answer:
x= +- 4/3
Step-by-step explanation:
(3x+4)(3x-4)=0
make each equation set to 0 and solve
3x+4=0
subtract 4 from both sides
3x=-4
divide both sides by 3
x=-4/3
3x-4=0
add 4 to both sides
3x=4
divide both sides by 3
x=4/3
Answer:

Step-by-step explanation:
Given the equation

This equation consists of two parts. In the left part, there is a logarithmic function
In the right part, there is a linear function 
To solve the equation graphically, you have to plot the graphs of these two functions and find the point of intersection of these graphs.
Hence, appropriate system is

Answer:
x=2
Step-by-step explanation:
We know the only number that gets us back to 0 after subtracting 4 is 4, because 4-4=0. The square root of 4 is 2. Hope my explanation wasn't too confusing!
2²=4
4-4=0