Step 1. Factor out the common term [tex]3[/tex]
[tex](3(3 x^{2}-1)^{6} [/tex]
Step 2. Use Multiplication Distributive Property: [tex](xy)^{a} = x^{a} y^{a} [/tex]
[tex] 3^{6}(3 x^{2}-1)^{6}[/tex]
Step 3. Simplify [tex] 3^{6} [/tex] to [tex]729[/tex]
[tex]729(3 x^{2}-1)^{6} [/tex]
Done!