七年级数学下册计算题 140文档格式.docx
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-2(a2b-ab2+ab2+a3)-(-6a2b+9ab2)
-(2mn-3m2-2n2)-(-mn+2m2-n2)
(a3+a2b+9)-(a2b-5)
-2(x3-y3+)+6(x3-y3+)
-(-x+2y)-(x-9y)
(9s+4)-3(s2+s-5)
-8(a2b-ab2+ab2+a3)+(-6a2b+2ab2)
-(4mn-2m2-3n2)+(-mn+8m2-n2)
(a3+a2b+8)-(a2b-7)
-4(x3-y3+)-4(x3-y3+)
-(-x+2y)-(x-2y)
(6s+7)-6(s2-s+8)
-4(a2b-ab2+ab2+a3)+(-5a2b+5ab2)
-(2mn-2m2-2n2)-(-mn+9m2-n2)
(a3+a2b+5)+(a2b-3)
-5(x3-y3+)+4(x3-y3+)
-(-x+3y)-(x-7y)
(9s+6)-6(s2+s+5)
-9(a2b-ab2+ab2+a3)+(-5a2b+8ab2)
-(6mn-4m2-2n2)-(-mn+5m2+n2)
(a3+a2b+6)+(a2b-2)
-5(x3-y3+)-5(x3-y3+)
-(-x+9y)-(x-10y)
(9s+6)-6(s2-s-4)
-8(a2b-ab2+ab2+a3)-(-5a2b+4ab2)
-(6mn-2m2+2n2)+(-mn+2m2-n2)
(a3+a2b+2)+(a2b-4)
-2(x3-y3+)-3(x3-y3+)
-(-x+8y)+(x-5y)
(8s+2)-9(s2-s+6)
-8(a2b-ab2+ab2+a3)-(-8a2b+9ab2)
-(5mn-3m2-4n2)+(-mn+7m2+n2)
(a3+a2b+4)-(a2b-5)
-2(x3-y3+)-4(x3-y3+)
-(-x+6y)-(x-8y)
(9s-2)-2(s2+s-8)
-3(a2b-ab2+ab2+a3)-(-7a2b+4ab2)
-(4mn-4m2-3n2)-(+mn+6m2-n2)
(a3+a2b+6)+(a2b-6)
-5(x3-y3+)+6(x3-y3+)
(8s-5)-5(s2+s-3)
-7(a2b-ab2+ab2+a3)+(-8a2b+7ab2)
-(5mn-2m2-3n2)-(-mn+6m2-n2)
(a3+a2b+1)+(a2b-4)
-(-x+7y)+(x-5y)
(8s-3)-9(s2-s+6)
-2(a2b-ab2+ab2+a3)-(-6a2b+2ab2)
-(2mn-2m2+2n2)+(+mn+9m2+n2)
(a3+a2b+9)+(a2b-2)