Answer:
3 (x-2) (x+2) (x^2+4)
Step-by-step explanation:
3x^4 − 48
Factor out a 3
3(x^4 -16)
Inside the parentheses is the difference of squares (a^2 - b^2) = (a-b) (a+b)
where a = x^2 and b = 4
3 (x^2-4) (x^2+4)
Inside the first parentheses is the difference of squares where a = x and b=2
3 (x-2) (x+2) (x^2+4)
