七年级数学上册计算题专项练习 465.docx

1、七年级数学上册计算题专项练习 4656b2-(a2+6b2)-2b29x+(3x-9)-( +4)-(ab+5a2)+(4ab-3a2)a2+ (3ab+a2)-7ab-3(b-1)-5(-b+4)(x2-y)+ (x-y2)+ (x2-y2)-(-x+y)-( x-y)(5s-1)-3(s2-s+2)-3(a2b-ab2-a3)+(-3a2b+4ab2)- (4mn+2m2-5n2)-(- mn+5m2+)(4a3+a2b+3)+ (a2b-6)-3(x3+y3+)+4(x3-y3-)8b2-(3a2+2b2)-4b2x+(2x-1)-( -2)-2(ab-2a2)+(3ab-a2)a2-

2、(2ab-5a2)-4ab-2(b-4)-3(-b-4)(x2-y)+ (x-y2)- (x2-y2)-(-x+3y)+( x-y)(6s-4)-4(s2+s+3)-2(a2b+ab2-a3)-(-3a2b-3ab2)- (5mn-5m2+2n2)-(- mn+4m2-)(3a3+a2b+1)+ (a2b-3)-3(x3+y3-)-4(x3-y3+)6b2-(2a2+b2)+4b25x+(2x-9)-( -4)-5(ab-3a2)-(ab-a2)a2- (ab-4a2)-4ab-(b-1)-5(-b-3)(x2-y)- (x-y2)- (x2-y2)-(-x+2y)-( x-3y)(2s-1)

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

4、1)+ (a2b-2)-3(x3-y3-)-2(x3-y3-)7b2-(a2-2b2)-5b28x+(x-4)-( -5)-2(ab+3a2)-(5ab-a2)3a2- (2ab-a2)-3ab-(b-1)-5(-b+4)(x2-y)+ (x-y2)+ (x2+y2)-(-x+y)-( x-2y)(4s-3)-2(s2+s+4)-4(a2b-ab2-a3)-(-3a2b+3ab2)- (3mn+2m2+5n2)+(-mn+3m2+)(3a3-a2b+2)- (a2b-2)-4(x3-y3+)-3(x3-y3+)7b2-(2a2-3b2)-3b26x+(2x-7)-( -4)-3(ab-4a2)

5、-(3ab-a2)3a2+ (ab-4a2)-6ab-4(b-4)+4(-b+2)(x2-y)+ (x-y2)+ (x2+y2)-(-x+y)+( x-y)(4s+3)+4(s2-s+4)-(a2b-ab2-a3)-(-3a2b-4ab2)- (4mn-2m2-2n2)+(-mn+2m2-)(2a3-a2b-5)- (a2b-5)-3(x3+y3+)-4(x3-y3-)b2-(a2+5b2)+4b24x+(2x-2)-( -2)-(ab+a2)+(2ab-4a2)4a2+ (3ab-4a2)-2ab-3(b-4)+5(-b+4)(x2-y)+ (x-y2)- (x2+y2)-(-x+3y)+( x-y)(5s+2)+4(s2+s+5)-4(a2b+ab2-a3)+(-2a2b+4ab2)- (4mn-3m2-4n2)+(-mn-2m2-)(3a3-a2b+5)- (a2b-1)-4(x3+y3+)+4(x3+y3+)