admin百科知識 2022-02-12 21:29:34 (5a^2-3b^2)-[-(a^2-2ab-b^2)-(5a^2+2ab+3b^2)](5a^2-3b^2)-[-(a^2-2ab-b^2)-(5a^2 2ab 3b^2)]化簡網友廻答:匿名網友(5a^2-3b^2) (a^2-2ab-b^2) (5a^2 2ab 3b^2)=11a^2-b^2 db標簽 生活常識_百科知識_各類知識大全»(5a^2-3b^2)-[-(a^2-2ab-b^2)-(5a^2+2ab+3b^2)]
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