1.把下列根式化为最简二次根式(式中a>b>0)根号下b/a+a/b-2(根号我不知点打啊)2.在实数范围内分解因式①+根号2×x-4 ②3x^2-5x-8③a^4+b^4(看的明白吧!x^2既是x的平方)
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![1.把下列根式化为最简二次根式(式中a>b>0)根号下b/a+a/b-2(根号我不知点打啊)2.在实数范围内分解因式①+根号2×x-4 ②3x^2-5x-8③a^4+b^4(看的明白吧!x^2既是x的平方)](/uploads/image/z/13393151-71-1.jpg?t=1.%E6%8A%8A%E4%B8%8B%E5%88%97%E6%A0%B9%E5%BC%8F%E5%8C%96%E4%B8%BA%E6%9C%80%E7%AE%80%E4%BA%8C%E6%AC%A1%E6%A0%B9%E5%BC%8F%28%E5%BC%8F%E4%B8%ADa%3Eb%3E0%29%E6%A0%B9%E5%8F%B7%E4%B8%8Bb%2Fa%2Ba%2Fb-2%28%E6%A0%B9%E5%8F%B7%E6%88%91%E4%B8%8D%E7%9F%A5%E7%82%B9%E6%89%93%E5%95%8A%292.%E5%9C%A8%E5%AE%9E%E6%95%B0%E8%8C%83%E5%9B%B4%E5%86%85%E5%88%86%E8%A7%A3%E5%9B%A0%E5%BC%8F%E2%91%A0%2B%E6%A0%B9%E5%8F%B72%C3%97x-4+%E2%91%A13x%EF%BC%BE2-5x-8%E2%91%A2a%EF%BC%BE4%2Bb%EF%BC%BE4%28%E7%9C%8B%E7%9A%84%E6%98%8E%E7%99%BD%E5%90%A7%21x%EF%BC%BE2%E6%97%A2%E6%98%AFx%E7%9A%84%E5%B9%B3%E6%96%B9%29)
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