一道初三代数题关于,一元二次方程的,急用!请务必正确已知:△两边AB,AC的长是关于X的一元二次方程.X²-(2k+3)X+K²+3K+2=0的两实数根,第三边BC的长为5(1)K为何值,△ABC为直角三角形且
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![一道初三代数题关于,一元二次方程的,急用!请务必正确已知:△两边AB,AC的长是关于X的一元二次方程.X²-(2k+3)X+K²+3K+2=0的两实数根,第三边BC的长为5(1)K为何值,△ABC为直角三角形且](/uploads/image/z/12598944-24-4.jpg?t=%E4%B8%80%E9%81%93%E5%88%9D%E4%B8%89%E4%BB%A3%E6%95%B0%E9%A2%98%E5%85%B3%E4%BA%8E%2C%E4%B8%80%E5%85%83%E4%BA%8C%E6%AC%A1%E6%96%B9%E7%A8%8B%E7%9A%84%2C%E6%80%A5%E7%94%A8%21%E8%AF%B7%E5%8A%A1%E5%BF%85%E6%AD%A3%E7%A1%AE%E5%B7%B2%E7%9F%A5%EF%BC%9A%E2%96%B3%E4%B8%A4%E8%BE%B9AB%2CAC%E7%9A%84%E9%95%BF%E6%98%AF%E5%85%B3%E4%BA%8EX%E7%9A%84%E4%B8%80%E5%85%83%E4%BA%8C%E6%AC%A1%E6%96%B9%E7%A8%8B.X%26%23178%3B-%EF%BC%882k%2B3%EF%BC%89X%2BK%26%23178%3B%2B3K%2B2%3D0%E7%9A%84%E4%B8%A4%E5%AE%9E%E6%95%B0%E6%A0%B9%2C%E7%AC%AC%E4%B8%89%E8%BE%B9BC%E7%9A%84%E9%95%BF%E4%B8%BA5%EF%BC%881%EF%BC%89K%E4%B8%BA%E4%BD%95%E5%80%BC%2C%E2%96%B3ABC%E4%B8%BA%E7%9B%B4%E8%A7%92%E4%B8%89%E8%A7%92%E5%BD%A2%E4%B8%94)
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