七年级数学上册计算题专项练习 132.docx
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七年级数学上册计算题专项练习 132.docx
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七年级数学上册计算题专项练习132
3b2-(2a2-2b2)+2b2
2x+(2x-9)-(-1)
-(ab-3a2)-(3ab-a2)
6a2+(4ab-5a2)-8ab
-3(b-4)-3(-b-4)
(x2-y)+(x-y2)+(x2-y2)
-(-x+4y)-(x-y)
(4s+3)+4(s2+s-3)
-3(a2b+ab2+a3)+(-3a2b+2ab2)
-(4mn+2m2+4n2)+(-mn-2m2+)
(2a3+a2b+5)+(a2b-2)
-4(x3+y3-)+2(x3+y3-)
3b2-(3a2+6b2)+5b2
3x+(5x-1)-(+5)
-3(ab+2a2)+(ab-2a2)
4a2+(4ab-4a2)-4ab
-3(b+1)-4(-b+3)
(x2-y)+(x-y2)-(x2+y2)
-(-x+y)+(x-4y)
(5s-2)+3(s2-s-5)
-3(a2b-ab2-a3)+(-3a2b+2ab2)
-(3mn+4m2+5n2)-(-mn+3m2-)
(3a3-a2b-4)+(a2b-5)
-4(x3-y3-)-3(x3+y3-)
8b2-(5a2-4b2)-b2
8x+(x-1)-(-4)
-4(ab-5a2)+(3ab-3a2)
2a2-(2ab-a2)-6ab
-(b-3)-3(-b-2)
(x2-y)-(x-y2)+(x2+y2)
-(-x+4y)-(x-4y)
(3s-3)-3(s2+s+4)
-2(a2b+ab2+a3)+(-3a2b+3ab2)
-(2mn+3m2+4n2)+(-mn+3m2-)
(3a3-a2b+1)+(a2b-6)
-4(x3-y3+)+3(x3+y3+)
b2-(5a2+3b2)-4b2
4x+(4x-4)-(+2)
-3(ab-a2)+(4ab-2a2)
6a2-(4ab-a2)-4ab
-4(b+1)+5(-b+4)
(x2-y)+(x-y2)+(x2-y2)
-(-x+y)+(x-4y)
(4s+2)-2(s2+s+4)
-4(a2b-ab2+a3)+(-4a2b+2ab2)
-(4mn-4m2-2n2)+(-mn+2m2-)
(3a3-a2b+5)-(a2b+4)
-3(x3+y3+)-3(x3-y3-)
6b2-(4a2+2b2)-6b2
2x+(x-2)-(+3)
-5(ab+5a2)+(5ab-2a2)
4a2-(3ab-2a2)-7ab
-(b+2)-2(-b-4)
(x2-y)-(x-y2)-(x2-y2)
-(-x+3y)+(x-3y)
(4s-3)-4(s2+s+4)
-3(a2b+ab2+a3)-(-4a2b+3ab2)
-(5mn+4m2-2n2)-(-mn-2m2+)
(2a3-a2b-3)+(a2b-6)
-3(x3+y3+)+2(x3-y3-)
8b2-(5a2-2b2)-2b2
9x+(4x-8)-(+2)
-5(ab-5a2)-(5ab-3a2)
a2+(3ab+6a2)-2ab
-3(b-2)-2(-b-4)
(x2-y)+(x-y2)-(x2+y2)
-(-x+3y)-(x-2y)
(2s-2)-3(s2+s-4)
-4(a2b+ab2-a3)+(-2a2b+4ab2)
-(4mn-2m2+2n2)-(-mn+2m2-)
(3a3-a2b-1)+(a2b-3)
-3(x3-y3-)+2(x3+y3-)
9b2-(2a2-4b2)+b2
2x+(3x-1)-(+4)
-(ab+a2)+(2ab-3a2)
a2+(4ab+5a2)-2ab
-4(b+1)+2(-b-2)
(x2-y)-(x-y2)-(x2-y2)
-(-x+y)-(x-4y)
(2s+1)-2(s2+s-2)
-3(a2b+ab2+a3)+(-4a2b-2ab2)
-(3mn-5m2-3n2)-(-mn+2m2+)
(2a3-a2b+1)-(a2b-6)
-2(x3+y3+)-4(x3-y3-)
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