Answer:
30 :75
Step-by-step explanation:
I don't understand what you mean
You can subtract 4 from 13 then subtract 4 again
Bart and David are correct.
Bart
6x(1+2/3^3)
6x * 1 = 6x
6x *2/3^3 = 4x^3
6x * 4x^3
David
x(6+4x^2)
x*6 = 6x
x*4x^2 = 4x^3
6x+4x^3