Answer:
[tex](x^2+3)(x^2-3)[/tex]
Step-by-step explanation:
Since both are perfect squares use the difference of squares formula [tex]a^2-b^2=(a+b)(a-b)[/tex] with a = [tex]x^{2}[/tex] and b = 3
=[tex](x^2 +3)(x^2-3)[/tex]
