七年级数学上册计算题专项练习 414.docx
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七年级数学上册计算题专项练习 414.docx
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七年级数学上册计算题专项练习414
6b2-(4a2+6b2)+b2
x+(4x-3)-(-2)
-4(ab-5a2)-(2ab-3a2)
4a2-(ab+2a2)-6ab
-4(b-4)-3(-b-2)
(x2-y)+(x-y2)-(x2-y2)
-(-x+4y)-(x-y)
(2s+3)+4(s2+s+4)
-(a2b+ab2+a3)+(-3a2b-4ab2)
-(2mn+4m2+3n2)-(-mn+2m2+)
(4a3-a2b+4)-(a2b-5)
-4(x3+y3-)-2(x3+y3+)
5b2-(5a2-2b2)+b2
4x+(4x-6)-(+4)
-2(ab-2a2)-(2ab-3a2)
4a2+(ab+5a2)-8ab
-4(b-4)-3(-b-3)
(x2-y)-(x-y2)-(x2-y2)
-(-x+y)-(x-2y)
(3s-2)+3(s2-s-4)
-3(a2b+ab2-a3)+(-2a2b+4ab2)
-(2mn-5m2-2n2)+(-mn+3m2+)
(4a3+a2b-3)+(a2b-2)
-4(x3-y3+)-4(x3-y3-)
2b2-(5a2-6b2)-5b2
9x+(5x-5)-(-1)
-(ab+5a2)-(2ab-4a2)
2a2-(3ab-3a2)-6ab
-(b+4)+5(-b+3)
(x2-y)-(x-y2)-(x2-y2)
-(-x+4y)+(x-4y)
(6s+2)-2(s2+s-3)
-3(a2b-ab2+a3)-(-2a2b+3ab2)
-(2mn-5m2+3n2)-(-mn+3m2-)
(2a3+a2b-5)-(a2b+1)
-2(x3+y3+)+4(x3+y3-)
9b2-(5a2-3b2)+5b2
9x+(3x-7)-(+1)
-3(ab+3a2)+(4ab-2a2)
3a2-(3ab+6a2)-6ab
-3(b-2)+4(-b-2)
(x2-y)+(x-y2)-(x2-y2)
-(-x+2y)+(x-4y)
(6s-3)-3(s2-s-4)
-4(a2b+ab2+a3)+(-3a2b-3ab2)
-(3mn-3m2+4n2)+(-mn+5m2+)
(2a3+a2b-1)-(a2b-5)
-4(x3-y3+)+2(x3+y3+)
2b2-(5a2+3b2)+4b2
3x+(2x-7)-(-3)
-5(ab+a2)+(4ab-a2)
6a2-(2ab-6a2)-3ab
-4(b+2)+5(-b-4)
(x2-y)-(x-y2)-(x2-y2)
-(-x+2y)+(x-y)
(3s+4)+4(s2+s+2)
-(a2b+ab2-a3)+(-4a2b-4ab2)
-(3mn+5m2-3n2)+(-mn+3m2+)
(2a3+a2b+3)+(a2b-1)
-2(x3+y3-)-2(x3+y3-)
2b2-(5a2-4b2)-4b2
7x+(2x-9)-(+5)
-(ab+3a2)+(3ab-4a2)
a2-(3ab+6a2)-2ab
-2(b+1)+4(-b+2)
(x2-y)+(x-y2)+(x2-y2)
-(-x+y)+(x-2y)
(5s+1)+2(s2-s-3)
-(a2b-ab2-a3)+(-2a2b+3ab2)
-(3mn-5m2-5n2)-(-mn+2m2+)
(3a3+a2b+4)-(a2b-3)
-3(x3-y3-)-4(x3+y3-)
6b2-(4a2+2b2)+b2
7x+(x-8)-(+1)
-4(ab-4a2)-(5ab-2a2)
a2+(3ab+2a2)-5ab
-(b-1)+2(-b+4)
(x2-y)-(x-y2)-(x2+y2)
-(-x+y)-(x-2y)
(2s-3)-4(s2-s-4)
-(a2b-ab2-a3)+(-2a2b+4ab2)
-(3mn-4m2-3n2)-(-mn-4m2-)
(2a3+a2b+2)+(a2b-5)
-2(x3-y3+)+3(x3+y3-)
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