Answer: D
Step-by-step explanation:
10x⁵+5x³-14x²-7 [split into 2 parts]
(10x⁵+5x³)+(-14x²-7) [factor each part]
5x³(2x²+1)-7(2x²+1) [put them together]
(5x³-7)(2x²+1)
Now, we know the answer is D.
