I think it's option number one.
Answer:
(1) 2(x - 1)(x + 5)
Explanation:
When you find the GCF of 2x^2 - 8x + 10, it is 2.
So then, you can simplify it to 2(x^2 + 4x - 5).
Factoring x^2 + 4x - 5 gets you 2(x - 1)(x + 5).
Hope this helps, and have a nice day :D
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