How could this be written in a+bi form? (x^2+2)
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In other words I'm asking, how do you write radical(-2) in a+bi form?
Originally Posted by badandy328 In other words I'm asking, how do you write radical(-2) in a+bi form? it would just be $\displaystyle \sqrt {2}~i$ so, $\displaystyle (x^2 + 2) = (x + \sqrt{2}~i)(x - \sqrt{2}~i)$ that's the closest i can see getting it into a + ib form
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