admin百科知識 2022-02-12 22:21:38 X三次方加4X平方減4X減16等於0X三次方加4X平方減4X減16等於0網友廻答:匿名網友x^3 4x^2-4x-16=0(x^3 4x^2)-(4x 16)=0x^2*(x 4)-4(x 4)=0(x 4)(x^2-4)=0(x 4)(x 2)(x-2)=0x1=-4x2=-2x3=2 db標簽 生活常識_百科知識_各類知識大全»X三次方加4X平方減4X減16等於0
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