Answer:
[tex]-64x^6[/tex]
Step-by-step explanation:
Because the problem is not an equation (i.e., it has no equals sign), there is nothing to solve. However, the expression can be simplified:
[tex](-4x^2)^3 = (-4)^3 \times (x^2)^3 = -64 \cdot x^6 = -64x^6[/tex]