GRE数学考点：Finding Real Roots
<p> 新<span word="GRE">GRE</span>数学考试的考点都是高中时候学到的知识点，考生不要过于紧张，把基本概念弄明白，再记住一些新<span word="GRE">GRE</span>数学必备的词汇，那么相信新<span word="GRE">GRE</span>数学应该没有问题。下面给大家整理的是关于<span word="Finding">Finding</span> <span word="Real">Real</span> <span word="Roots">Roots</span>的相关内容，希望对各位考生有所帮助。</p><p> <span word="Finding">Finding</span> <span word="Real">Real</span> <span word="Roots">Roots</span></p><p> <span word="If">If</span> <span word="is">is</span> <span word="a">a</span> <span word="factor">factor</span> <span word="of">of</span> <span word="the">the</span> <span word="polynomial">polynomial</span> <span word="p">p</span>, <span word="then">then</span> <span word="c">c</span> <span word="is">is</span> <span word="a">a</span> <span word="root">root</span> <span word="of">of</span> <span word="p">p</span>.</p><p> <span word="We">We</span> <span word="can">can</span> <span word="find">find</span> <span word="the">the</span> <span word="real">real</span> <span word="roots">roots</span> <span word="of">of</span> <span word="polynomial">polynomial</span> <span word="p">p</span> <span word="by">by</span> <span word="finding">finding</span> <span word="all">all</span> <span word="the">the</span> <span word="factors">factors</span> <span word="of">of</span> <span word="p">p</span>.</p><p> <span word="Example">Example</span>:</p><p> <span word="p">p</span>=<span word="x">x</span>2+3<span word="x">x</span>+2=. <span word="Two">Two</span> <span word="real">real</span> <span word="roots">roots</span> <span word="of">of</span> <span word="p">p</span> <span word="are">are</span> -1 <span word="and">and</span> -2.</p><p> <span word="Remember">Remember</span>:</p><p> <span word="To">To</span> <span word="find">find</span> <span word="if">if</span> <span word="c">c</span> <span word="is">is</span> <span word="a">a</span> <span word="root">root</span> <span word="of">of</span> <span word="p">p</span>, <span word="evaluate">evaluate</span> <span word="p">p</span> <span word="and">and</span> <span word="check">check</span> <span word="if">if</span> <span word="p">p</span>=0.</p><p> <span word="If">If</span> <span word="x">x</span> <span word="is">is</span> <span word="a">a</span> <span word="common">common</span> <span word="factor">factor</span> <span word="of">of</span> <span word="p">p</span>, <span word="then">then</span> <span word="zero">zero</span> <span word="is">is</span> <span word="a">a</span> <span word="root">root</span> <span word="of">of</span> <span word="p">p</span>.</p><p> 有一部分考生认为新<span word="GRE">GRE</span>数学具有一定的难度，这其中的原因是由于考生在复习时没有把新<span word="GRE">GRE</span>数学的基础打牢。想要新<span word="GRE">GRE</span>数学考好，复习的时候一定要把基本概念和重要考点都弄扎实。祝大家都能取得理想成绩!</p><p> </p><p> </p>
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