√30-2x=4 equation

The teacher will be very surprised to see your correct solution 😉

You have entered [src]

  ____          
\/ 30  - 2*x = 4

- 2 x + \sqrt{30} = 4

Simplify

Detail solution

Given the linear equation:

sqrt(30)-2*x = 4

Expand brackets in the left part

sqrt30-2*x = 4

Divide both parts of the equation by (sqrt(30) - 2*x)/x

x = 4 / ((sqrt(30) - 2*x)/x)

We get the answer: x = -2 + sqrt(30)/2

The graph

Plot the graph f1(x)

Plot the graph f2(x)

Rapid solution [src]

            ____
          \/ 30 
x1 = -2 + ------
            2

x_{1} = -2 + \frac{\sqrt{30}}{2}

x1 = -2 + sqrt(30)/2

Sum and product of roots [src]

sum

       ____
     \/ 30 
-2 + ------
       2

-2 + \frac{\sqrt{30}}{2}

       ____
     \/ 30 
-2 + ------
       2

-2 + \frac{\sqrt{30}}{2}

product

       ____
     \/ 30 
-2 + ------
       2

-2 + \frac{\sqrt{30}}{2}

       ____
     \/ 30 
-2 + ------
       2

-2 + \frac{\sqrt{30}}{2}

-2 + sqrt(30)/2

Numerical answer [src]

x1 = 0.738612787525831

x1 = 0.738612787525831