当t取什么值时,一元二次方程2tx^2+4tx+2t=3-x^2有相等的2个实数根?此时这相等的两个实数根是多少?帮个忙~日行一善,人人有责- -
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![当t取什么值时,一元二次方程2tx^2+4tx+2t=3-x^2有相等的2个实数根?此时这相等的两个实数根是多少?帮个忙~日行一善,人人有责- -](/uploads/image/z/8668039-31-9.jpg?t=%E5%BD%93t%E5%8F%96%E4%BB%80%E4%B9%88%E5%80%BC%E6%97%B6%2C%E4%B8%80%E5%85%83%E4%BA%8C%E6%AC%A1%E6%96%B9%E7%A8%8B2tx%5E2%2B4tx%2B2t%3D3-x%5E2%E6%9C%89%E7%9B%B8%E7%AD%89%E7%9A%842%E4%B8%AA%E5%AE%9E%E6%95%B0%E6%A0%B9%3F%E6%AD%A4%E6%97%B6%E8%BF%99%E7%9B%B8%E7%AD%89%E7%9A%84%E4%B8%A4%E4%B8%AA%E5%AE%9E%E6%95%B0%E6%A0%B9%E6%98%AF%E5%A4%9A%E5%B0%91%3F%E5%B8%AE%E4%B8%AA%E5%BF%99%7E%E6%97%A5%E8%A1%8C%E4%B8%80%E5%96%84%2C%E4%BA%BA%E4%BA%BA%E6%9C%89%E8%B4%A3-+-)
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