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(x - 4i)(x + 4i) where i is the square root of -1

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βˆ™ 9y ago
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βˆ™ 12y ago

x2 + 16 has no real factors.

In complex numbers, it is (x + 4i)*(x - 4i)

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Q: How do you factor xsquared plus 16?
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