Solve for all zeros, reduce as much as possible, show all work. x^4 + 14x^2 + 45 = 0

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In the film, zeke the zombie slayer versus the zombies from space, zeke slayed 140 zombies. in the sequel, zeke the zombie slayer versus the zombies from space, part 2, he slayed 5% more zombies. how many zombies were slain by zeke in the sequel?

Find the value. a. 0.003 b. 0.03 c. 0.3 d. 3