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ڵλãҳ > 一元二次不等式解法

һԪη: (1)ֱӿƽ:һԪηһһδ֪ ƽ, һһ ʱ,Ը ,ͨƽ̵Ľ...
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һԪη(ʽ)_ͬϰ_ѧ_н_ר |0Ķ|0|ٱĵ һԪη(ʽ)_ͬϰ_ѧ_н_...
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3Ⱦ,ΡĹϵ :ѧϰһԪһβʽһԪβʽν? ǽѧϰνһԪβʽ ...
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һԪη̽Ӧⳣͼⷽ 1 ⳣĵϵ: =ۼ-, =ÿƷ, = ...
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һԪη̽ⷨ״_ѧ_ѧ_н_רһԪη̽ⷨ״⡶һԪη̼ⷨԾ A һѡһѡ(ÿС 3 ,...
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һԪβʽĽ⼯_ѧ_Ȼѧ_רҵϡСʱĿγ̵ʮһ---һԪβʽĽ⼯֪ʶҪ 1ʽ֤ʽͽⲻʽĻ...
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1? ? 2( x ? 3) (10) (1-3y)2+2(3y-1)=0 2 ҳ 14 ҳ 1.ùʽ ʽ:һԪηһʽ,Ȼбʽ =b2-4ac...
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