(3x^2y-^5)-^3

What????

(3x²y⁻⁵)⁻³

= (3x²/y⁵)⁻³

= (y⁵/3x²)³

= y¹⁵/27x⁹

Rats that would be

y¹⁵/27x⁶

what are these squares in the answer? I am lost

Ahh. Apparently a font difference between your browser and mine. Let me rephrase:

(3x^2 y^-5)^-3

= (3x^2/y5)^-3

= (y^5/3x^2)^3

= y^15/27x^6

It looks like the expression you provided is not clear and may contain some errors. There are unexpected characters, such as "-^5" and "-^3", which do not follow typical mathematical notation.

To help you better, could you please clarify the expression or provide more details about what you are trying to achieve?