七年级数学下册计算题 55Word文档格式.docx
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(3s+1)-7(s2-s-8)
-3(a2b-ab2+ab2+a3)+(-2a2b+5ab2)
-(3mn-2m2+2n2)+(-mn+5m2-n2)
(a3+a2b+5)+(a2b-4)
-4(x3-y3+)-5(x3-y3+)
-(-x+5y)-(x-10y)
(6s-3)-9(s2-s-6)
-2(a2b-ab2+ab2+a3)-(-3a2b+5ab2)
-(3mn-3m2+4n2)-(-mn+7m2+n2)
(a3+a2b+1)-(a2b-8)
-5(x3-y3+)-3(x3-y3+)
-(-x+3y)-(x-7y)
(2s+4)-2(s2+s-6)
-6(a2b-ab2+ab2-a3)-(-6a2b+6ab2)
-(5mn-3m2-3n2)-(+mn+9m2-n2)
(a3+a2b+8)+(a2b-6)
-6(x3-y3+)-6(x3-y3+)
-(-x+3y)-(x-5y)
(8s-5)-8(s2+s-4)
-2(a2b-ab2+ab2+a3)+(-4a2b+4ab2)
-(5mn-3m2+4n2)+(-mn+3m2+n2)
(a3+a2b+5)+(a2b-9)
-2(x3-y3+)-2(x3-y3+)
-(-x+3y)+(x-7y)
(4s-6)-6(s2+s+6)
-8(a2b-ab2+ab2+a3)+(-7a2b+4ab2)
-(6mn-4m2-2n2)+(-mn+3m2+n2)
(a3+a2b+2)-(a2b-2)
-2(x3-y3+)+4(x3-y3+)
-(-x+5y)+(x-5y)
(5s-5)-4(s2-s+3)
-5(a2b-ab2+ab2+a3)-(-4a2b+9ab2)
-(6mn-2m2+4n2)+(+mn+5m2-n2)
(a3+a2b+4)-(a2b-7)
-(-x+2y)+(x-5y)
(3s+8)-8(s2+s+2)
-2(a2b-ab2+ab2+a3)-(-5a2b+7ab2)
-(2mn-4m2-3n2)+(+mn+7m2+n2)
(a3+a2b+2)+(a2b-5)
-6(x3-y3+)-5(x3-y3+)
-(-x+8y)+(x-4y)
(6s+9)-8(s2-s+6)
-9(a2b-ab2+ab2-a3)+(-4a2b+3ab2)
-(4mn-2m2+2n2)+(+mn+7m2-n2)
(a3+a2b+1)-(a2b-9)
-4(x3-y3+)+6(x3-y3+)
-(-x+9y)-(x-3y)
(6s+3)-6(s2+s-4)
-6(a2b-ab2+ab2+a3)-(-3a2b+8ab2)
-(6mn-4m2+2n2)-(+mn+6m2-n2)