hi can you factor x^2 + 4? No right?
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Originally Posted by sakonpure6 hi can you factor x^2 + 4? No right? That depends. If you are factoring over the real numbers then no, it doesn't factor. If you are factoring over the complex numbers then yes, it factors: $\displaystyle x^2 + 4 = (x + 2i)(x - 2i)$ -Dan
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