book Maths Puzzle Numerical Ability

Can you help?

4^-1x^2y^-3/6^-1x^-1y^2 simplify

I got 3x^3/2y^5 or 1x^3/2y^5

How far off am I?

Read Solution (Total 0)

book Other Question

4x+2x-4=8 solve

(-6x^4+3x^2-16) + (4x^2+4x-7)

please show work
thanks