Respuesta :

VeronicaEngland

Answer:

I'm not sure if you meant to capitalize the first "x". If you did, then the correct answer is:

Xx+4X+5x+20

If you didn't, the answer is:

x^2+5x+20

Work:

1) X*x=Xx

2) X*4=4X

3) 5*x=5x

4) 5*4=20