✨ Best Answer ✨
1.1 x2乗+x
1.2 xy-2x+y-2
3 1/3x+1/2y
4 -6a+2b2乗
2.1 ac-ad-bc+bd
2 xy-2x+y-2
3 a2乗+3a-4
4 x2乗+10x+25
5 4x2乗-12x+9
6 9x2乗-4
いえいえ！
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