Answer:
Step-by-step explanation:
64 = 4*4*4 = 4³
[tex]x^{9}= x^{3*3}=(x^{3})^{3} \\\\\\64x^{9}=4^{3}*(x^{3})^{3} = (4x^{3})^{3}[/tex]
the answer is=8x^4.5, 4x^3