Mathematics
初中
已解决
想問各位這兩題有沒有什麼比較好的解法？
閆3 若將4(x-1) -20(x-1)(x+2)+25(x+2)因式分解得(ax+b)²,則2=
遑要官具发公乘
a
練習4 因式分解x²-y²+z²-2.xz=中
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