Respuesta :

taskmasters
If x = 4

x² + 2x = 24

Substitute x by its value

4² + 2(4) 
16 + 8 = 24



TSO
We simply need to plug in x = 4 into x² + 2x

So plugging in x = 4, we get:

4² + 2(4)

Simplifying it, we get:

16 + 2(4)
16 + 8
24

When x = 4, x² + 2x will equal 24.