七年级数学上册计算题专项练习 59Word下载.docx
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(2s+3)-2(s2+s-4)
-(a2b+ab2-a3)-(-2a2b-3ab2)
-(2mn+5m2+5n2)+(-mn-5m2-)
(a3-a2b-4)+(a2b-4)
-3(x3-y3-)-2(x3+y3-)
9b2-(3a2-6b2)+4b2
2x+(5x-7)-(+5)
-(ab+2a2)+(6ab-a2)
6a2-(2ab+6a2)-8ab
-4(b-1)+5(-b+4)
(x2-y)-(x-y2)+(x2-y2)
-(-x+2y)+(x-4y)
(2s+1)-3(s2+s-5)
-4(a2b-ab2-a3)-(-3a2b+2ab2)
-(2mn-3m2-3n2)-(-mn-2m2+)
(4a3+a2b-4)-(a2b-5)
-4(x3+y3-)+2(x3-y3-)
8b2-(2a2+6b2)+6b2
6x+(4x-4)-(-5)
-3(ab+4a2)+(ab-3a2)
a2-(4ab+6a2)-5ab
-3(b+4)-2(-b-4)
(x2-y)+(x-y2)-(x2-y2)
-(-x+2y)+(x-y)
(3s+2)-3(s2-s+4)
-(a2b-ab2+a3)+(-3a2b+4ab2)
-(4mn-2m2+3n2)-(-mn-2m2-)
(a3+a2b+3)-(a2b+2)
-3(x3-y3+)-3(x3+y3-)
4b2-(3a2-2b2)+3b2
7x+(2x-5)-(-4)
-2(ab+a2)+(2ab-4a2)
3a2-(4ab+2a2)-ab
-3(b+2)-5(-b-2)
-(-x+4y)+(x-3y)
(2s+1)+3(s2+s-4)
-4(a2b+ab2-a3)-(-3a2b-3ab2)
-(4mn+4m2+2n2)+(-mn-2m2-)
(2a3-a2b-4)+(a2b+2)
-3(x3+y3+)+2(x3+y3-)
3b2-(2a2-4b2)+b2
x+(4x-9)-(+1)
-3(ab+2a2)+(ab-2a2)
4a2+(2ab+4a2)-ab
-3(b-1)+2(-b-3)
(x2-y)-(x-y2)-(x2-y2)
-(-x+y)+(x-y)
(6s-4)+2(s2-s-3)
-4(a2b+ab2+a3)-(-4a2b-4ab2)
-(3mn-4m2-5n2)-(-mn+5m2-)
(2a3+a2b+2)+(a2b-2)
-3(x3-y3-)-3(x3+y3-)
6b2-(4a2+4b2)-5b2
4x+(x-3)-(+5)
-4(ab+2a2)+(6ab-4a2)
5a2-(3ab-2a2)-4ab
-(b-4)-5(-b+4)
(x2-y)+(x-y2)-(x2+y2)
-(-x+2y)+(x-3y)
(6s-3)+3(s2+s+4)
-4(a2b-ab2+a3)-(-4a2b+3ab2)
-(3mn-2m2-2n2)+(-mn+4m2-)
(a3+a2b+5)-(a2b+3)
-3(x3-y3-)-4(x3+y3-)
9b2-(a2-3b2)+b2
6x+(x-6)-(+4)
-4(ab-a2)+(4ab-4a2)
a2+(4ab-6a2)-7ab
-4(b+2)-5(-b-2)
(2s+1)+2(s2-s-2)
-4(a2b-ab2-a3)-(-3a2b-4ab2)
-(4mn-2m2-3n2)+(-mn-3m2+)
(a3+a2b-4)+(a2b+5)
-4(x3-y3+)-2(x3-y3-)