计算2(y-2)*(y+3)- 5(y-3)*(y+8)
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计算2(y-2)*(y+3)-5(y-3)*(y+8)计算2(y-2)*(y+3)-5(y-3)*(y+8)计算2(y-2)*(y+3)-5(y-3)*(y+8)2(y-2)(y+3)-5(y-3)(
计算2(y-2)*(y+3)- 5(y-3)*(y+8)
计算2(y-2)*(y+3)- 5(y-3)*(y+8)
计算2(y-2)*(y+3)- 5(y-3)*(y+8)
2(y-2)(y+3)-5(y-3)(y+8) =(2y+2y-12)-(5y+25y-120) =-3y-23y+108
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