七年级数学上册计算题专项练习 174.docx
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七年级数学上册计算题专项练习174
7b2-(5a2+5b2)+2b2
5x+(5x-6)-(+4)
-3(ab-5a2)+(4ab-2a2)
2a2+(3ab+5a2)-8ab
-(b+2)-4(-b-3)
(x2-y)-(x-y2)-(x2-y2)
-(-x+3y)-(x-3y)
(6s-1)+4(s2-s+5)
-3(a2b-ab2+a3)-(-2a2b+4ab2)
-(3mn+3m2-2n2)+(-mn+2m2+)
(a3+a2b-4)-(a2b-2)
-2(x3-y3+)+3(x3+y3+)
8b2-(a2-3b2)+b2
7x+(2x-7)-(+1)
-(ab-4a2)-(ab-2a2)
5a2+(ab+5a2)-4ab
-3(b+4)-5(-b-3)
(x2-y)+(x-y2)+(x2-y2)
-(-x+y)+(x-2y)
(2s+4)+3(s2-s+3)
-4(a2b-ab2-a3)-(-3a2b-3ab2)
-(4mn+3m2+2n2)+(-mn+4m2+)
(a3+a2b+2)-(a2b-5)
-4(x3-y3-)+4(x3-y3-)
5b2-(4a2+b2)+2b2
8x+(x-9)-(+5)
-3(ab+3a2)+(4ab-4a2)
2a2+(2ab-5a2)-2ab
-4(b+1)-4(-b+2)
(x2-y)+(x-y2)-(x2+y2)
-(-x+4y)+(x-y)
(5s-3)-2(s2+s+3)
-4(a2b-ab2+a3)-(-2a2b-3ab2)
-(5mn+2m2-2n2)+(-mn-2m2+)
(3a3+a2b+1)-(a2b+4)
-4(x3+y3-)+2(x3+y3+)
6b2-(2a2-2b2)+b2
8x+(5x-5)-(+5)
-2(ab+5a2)+(3ab-3a2)
5a2-(3ab+4a2)-3ab
-4(b+3)-4(-b+4)
(x2-y)+(x-y2)-(x2+y2)
-(-x+3y)+(x-4y)
(5s-4)+3(s2-s+4)
-3(a2b+ab2-a3)-(-4a2b-2ab2)
-(3mn-4m2-3n2)-(-mn-3m2-)
(2a3-a2b+5)+(a2b-5)
-4(x3-y3-)+2(x3-y3-)
4b2-(5a2-b2)-5b2
7x+(3x-1)-(+2)
-(ab+2a2)+(4ab-4a2)
3a2+(4ab+5a2)-ab
-2(b-1)-5(-b+4)
(x2-y)-(x-y2)+(x2+y2)
-(-x+4y)-(x-3y)
(2s-4)+4(s2+s-4)
-3(a2b+ab2-a3)-(-3a2b+4ab2)
-(3mn+2m2+5n2)+(-mn+4m2-)
(3a3+a2b+2)+(a2b-5)
-3(x3-y3+)+3(x3+y3-)
9b2-(4a2+6b2)+3b2
5x+(3x-3)-(+4)
-(ab-4a2)-(2ab-3a2)
5a2-(4ab-4a2)-6ab
-2(b+4)-2(-b+3)
(x2-y)-(x-y2)-(x2+y2)
-(-x+y)+(x-3y)
(3s-1)+2(s2-s-5)
-3(a2b+ab2-a3)-(-3a2b-3ab2)
-(3mn-2m2-4n2)-(-mn-5m2+)
(3a3-a2b-4)+(a2b-1)
-4(x3-y3-)+3(x3-y3+)
5b2-(3a2+5b2)-2b2
5x+(x-1)-(+4)
-(ab+3a2)-(4ab-a2)
2a2-(3ab-6a2)-ab
-4(b+3)-2(-b-4)
(x2-y)+(x-y2)-(x2-y2)
-(-x+3y)+(x-4y)
(2s+4)+2(s2-s+4)
-(a2b+ab2-a3)-(-3a2b-3ab2)
-(2mn+2m2-4n2)+(-mn-5m2-)
(3a3+a2b-5)-(a2b-1)
-2(x3+y3-)-3(x3+y3+)