Answer:
[tex]12x^7[/tex]
Step-by-step explanation:
[tex]3x^2 \times 4x^5[/tex]
[tex]3 \times x^2 \times 4 \times x^5[/tex]
[tex]3 \times 4 \times x^{2+5}[/tex]
[tex]12 \times x^7[/tex]
