七年级数学上册计算题专项练习 173.docx

1、七年级数学上册计算题专项练习 1733b2-(3a2+3b2)+5b2x+(4x-9)-( +4)-3(ab-2a2)+(6ab-3a2)4a2- (4ab-6a2)-8ab-2(b+4)+4(-b-4)(x2-y)+ (x-y2)- (x2+y2)-(-x+3y)-( x-2y)(6s-3)+4(s2-s-5)-3(a2b+ab2-a3)+(-3a2b+2ab2)- (2mn-3m2+5n2)+(- mn+3m2+)(3a3-a2b-3)+ (a2b+1)-3(x3-y3-)+2(x3-y3-)2b2-(5a2+6b2)+5b23x+(4x-5)-( +5)-4(ab-3a2)+(4ab-a

2、2)5a2- (4ab-3a2)-6ab-(b-3)+4(-b+4)(x2-y)- (x-y2)- (x2-y2)-(-x+3y)+( x-2y)(4s+4)-3(s2-s+2)-4(a2b-ab2+a3)+(-4a2b+3ab2)- (5mn-4m2-3n2)-(- mn-3m2-)(a3+a2b-1)- (a2b-2)-2(x3+y3-)-4(x3+y3-)5b2-(2a2-4b2)+6b25x+(4x-1)-( -4)-3(ab-2a2)+(3ab-a2)2a2+ (2ab-a2)-2ab-2(b+2)+4(-b+3)(x2-y)- (x-y2)- (x2-y2)-(-x+4y)+( x

3、-y)(4s-3)-2(s2-s+3)-4(a2b+ab2-a3)-(-4a2b+4ab2)- (2mn+4m2+2n2)+(- mn+4m2+)(3a3+a2b-5)+ (a2b+6)-4(x3+y3+)+4(x3-y3-)6b2-(4a2-4b2)+6b27x+(x-7)-( +1)-(ab-5a2)-(3ab-3a2)6a2+ (3ab-a2)-3ab-(b+2)-3(-b+3)(x2-y)- (x-y2)- (x2+y2)-(-x+4y)+( x-y)(3s+4)-3(s2+s-5)-4(a2b-ab2+a3)+(-4a2b+3ab2)- (5mn+2m2+5n2)-(-mn+4m2+

4、)(2a3-a2b+5)- (a2b-4)-2(x3-y3+)-2(x3-y3-)4b2-(5a2-3b2)-5b29x+(4x-6)-( +2)-3(ab-a2)+(2ab-4a2)3a2- (2ab-5a2)-4ab-3(b+1)-4(-b-4)(x2-y)+ (x-y2)- (x2+y2)-(-x+y)+( x-3y)(5s-1)+4(s2+s+4)-4(a2b-ab2-a3)+(-2a2b-4ab2)- (5mn-5m2+2n2)+(- mn+3m2-)(3a3+a2b-4)- (a2b+2)-3(x3-y3+)+4(x3+y3+)2b2-(2a2+3b2)-2b25x+(x-8)-(

5、 +5)-5(ab+a2)-(3ab-3a2)3a2- (4ab+5a2)-ab-4(b-4)-3(-b-4)(x2-y)- (x-y2)- (x2-y2)-(-x+3y)-( x-3y)(4s+3)+4(s2-s+3)-4(a2b-ab2-a3)-(-4a2b-2ab2)- (5mn-2m2+4n2)+(- mn-5m2+)(2a3-a2b-1)- (a2b+1)-4(x3+y3-)+4(x3+y3+)6b2-(3a2-3b2)+5b29x+(3x-9)-( -4)-2(ab+2a2)+(6ab-3a2)a2- (4ab-a2)-ab-4(b+3)+2(-b+4)(x2-y)- (x-y2)+ (x2+y2)-(-x+2y)+( x-2y)(6s-1)-4(s2-s-4)-(a2b+ab2-a3)+(-4a2b-4ab2)- (2mn-3m2+5n2)+(-mn+4m2-)(3a3-a2b+2)+ (a2b-6)-3(x3+y3+)-3(x3-y3+)