七年级数学上册计算题专项练习 24Word文档下载推荐.docx
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(6s+2)-3(s2+s+4)
-(a2b+ab2+a3)-(-2a2b+3ab2)
-(3mn+3m2+3n2)+(-mn-2m2+)
(a3+a2b-5)-(a2b-3)
-3(x3+y3+)-3(x3-y3+)
5b2-(4a2+2b2)+3b2
7x+(x-7)-(-2)
-3(ab-3a2)+(2ab-a2)
4a2+(ab+5a2)-6ab
-(b-4)-2(-b-2)
(x2-y)-(x-y2)-(x2-y2)
-(-x+3y)-(x-2y)
(4s-4)+2(s2-s+5)
-4(a2b+ab2+a3)-(-2a2b+3ab2)
-(2mn-4m2-4n2)+(-mn+3m2-)
(3a3-a2b+2)-(a2b-4)
-3(x3-y3-)-2(x3-y3+)
9b2-(2a2-3b2)-6b2
4x+(5x-8)-(-1)
-4(ab+3a2)-(5ab-2a2)
a2-(2ab-6a2)-7ab
-3(b+2)-5(-b-2)
(x2-y)-(x-y2)+(x2+y2)
(5s-3)+2(s2+s-3)
-2(a2b-ab2-a3)+(-2a2b+3ab2)
-(5mn-5m2+2n2)+(-mn+4m2-)
(a3-a2b+5)-(a2b+6)
-3(x3-y3+)+2(x3-y3-)
6b2-(a2+3b2)+6b2
4x+(x-9)-(-3)
-2(ab+5a2)-(ab-3a2)
5a2-(4ab+5a2)-ab
-3(b-2)-4(-b+4)
(x2-y)+(x-y2)+(x2+y2)
-(-x+3y)-(x-3y)
(3s+4)-4(s2+s-4)
-2(a2b-ab2+a3)+(-3a2b+4ab2)
-(5mn+2m2-2n2)-(-mn+5m2+)
(2a3+a2b-2)+(a2b-4)
-3(x3-y3+)+3(x3-y3-)
5b2-(4a2+5b2)-2b2
3x+(4x-4)-(-2)
-5(ab-2a2)-(5ab-2a2)
a2+(ab-4a2)-7ab
-3(b+2)+5(-b-3)
-(-x+4y)-(x-2y)
(3s-2)-2(s2-s+3)
-2(a2b-ab2-a3)+(-2a2b-4ab2)
-(4mn-2m2-3n2)-(-mn-2m2-)
(3a3+a2b-2)+(a2b-3)
-4(x3+y3-)+4(x3+y3+)
4b2-(4a2+4b2)-4b2
9x+(2x-3)-(+5)
-4(ab-5a2)+(6ab-a2)
2a2+(2ab+6a2)-8ab
-2(b+3)-5(-b+2)
-(-x+y)-(x-y)
(4s+1)+2(s2-s-4)
-2(a2b-ab2-a3)-(-3a2b+4ab2)
-(3mn-3m2-3n2)-(-mn-2m2-)
(3a3+a2b+4)-(a2b+1)
-4(x3-y3+)-3(x3+y3-)
6b2-(4a2-b2)+b2
9x+(4x-9)-(+5)
-5(ab+a2)-(3ab-a2)
5a2+(4ab+6a2)-3ab
-4(b-2)+5(-b-2)
(x2-y)+(x-y2)-(x2+y2)
-(-x+2y)+(x-y)
(3s-4)-4(s2+s+5)
-3(a2b+ab2-a3)+(-2a2b+4ab2)
-(3mn+3m2+5n2)+(-mn+4m2+)
(a3+a2b+5)-(a2b+6)
-4(x3-y3-)+2(x3+y3-)