solve the equation 2x^2-4x=-3 and express the roots in a+bi form._数学解答

solve the equation 2x^2-4x=-3 and express the roots in a+bi form.
太久没做了,忘记怎么算了.

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解答

求根公式,想不起来了用配方法推导一下,最后表示成虚数就对了!