Question

Please help me on math. Click on the picture to see it fully.​

edit: doesnt show up fully so..
x=4

x2 +x = ?

Answer 1

The answer should be 20

Explanation:

If four is placed for x, then the square should make it 16, because 4x4=16. Adding x, which is four makes it 16+4. Which is equal to 20.