Answer:
3x^2(x - 2)(x + 5).
Step-by-step explanation:
3x^4 = 3 * x * x * x * x
9x^3 = 3 * 3 * x * x * x
-30x^2 = -1 * 2 * 3 * 5 * x * x
All three terms have a 3 and two x's.
3 * x * x (x * x + 3 * x - 2 * 5) = 3x^2(x^2 + 3x - 10)
x^2 + 3x - 10 = x^2 + 5x - 2x - 10 = (x - 2)(x + 5)
So, 3x^2(x - 2)(x + 5)
Hope this helps!
