计算2(y-2)*(y+3)- 5(y-3)*(y+8)
问题描述:
计算2(y-2)*(y+3)- 5(y-3)*(y+8)
答
2(y-2)(y+3)-5(y-3)(y+8) =(2y+2y-12)-(5y+25y-120) =-3y-23y+108
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