Answer:
[tex]5x^{6}[/tex]
Step-by-step explanation:
In exponent multiplication, if bases are same, add the powers.
[tex]a^{m}*a^{n}=a^{m+n}\\\\\\(5x^{4})*x^{2}=5*x^{4+2}=5x^{6}[/tex]
