Question

Kindly please explain how you got the solution.

the topic is radical equations

thanks.

Answer 1

Firstly subtract 4 from both sides

Then we are left with the the cube root of 6x +12 which equals to 8

How we do we undo a cube root you say!

We exponentiate both sides to the third power!

So now we got ride of the cube root sign and are just left with:

6x+12=8^3

6x+12= 512

Subtract 12 from both sides

And you get 6x=500

Divide by six

500/6=x

Simplify

250/3

Hope this helped!