What is the following difference?
230 192ab -5 V81365

2ab (3)/192ab^2 - 5 (3)/81a^4b^5

2ab (3)/64*3*a*b^2 - 5 (3)/27*3*a^3*a*b^3*b^2

2*4*a*b (3)/3ab^2 - 5*3*a*b (3)/3ab^2

8ab (3)/3ab^2 - 15ab (3)/3ab^2

-7ab (3)/3ab^2

After the / is under the cube root

B? ? i'm most likely wrong but i think it would be b