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How would you factor x squared plus 4?

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Anonymous

∙ 13y ago
Updated: 4/28/2022

(X^2) + 4 = 0
(X^2) = -4
X = +/- 2i

(X+2i)(X-2i)


This can't be factorised easily. The above method is the factorisation for (X^2) - 4,

and is also the difference of two squares (9-4) = (3+2)(3-2) etc...

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Wiki User

∙ 13y ago
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