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More answers

X2 + 1 ????

X2 + 1

Can not be factored in real numbers but there is a clever way to factor this expression in complex numbers.

(X + i)(X - i)

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Wiki User

12y ago
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yes

x2=1

if you square root both sides you get x = +-1 or, using the difference of 2 perfect squares,

(x-1)(x+1)=0

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Wiki User

14y ago
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Q: Can x2 1 be factored
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