七年级数学上册计算题专项练习 (373)
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6b 2-(4a 2+6b 2)-5b 2 x+(x-2)-(4
x +2) -4(ab-a 2)-(6ab-4a 2
) a 2-31(4ab-4a 2)-8ab
-4(b+2)+4(-b-3)
31(x 2-y)-51(x-y 2)+2
1(x 2-y 2) -(-21x+2y)-(4
1x-2y) (4s+3)-2(s 2
+s+5)
-3(a 2b+21ab 2+21a 3)+(-3a 2b+3ab 2) -21(3mn+5m 2+3n 2)+(-43mn+4m 2-5n 2) (a 3+31a 2b+3)-21(a 2b+1) -2(41x 3-31y 3-21)+3(31x 3+21y 3+41)
7b 2-(4a 2-5b 2)-2b 2 8x+(3x-2)-(5
x +1) -(ab+3a 2)-(4ab-3a 2
) 4a 2+21(4ab+3a 2)-ab
-2(b-4)+2(-b-4)
51(x 2-y)+21(x-y 2)-3
1(x 2-y 2) -(-61x+y)-(2
1x-2y) (6s-4)+2(s 2
-s+2)
-2(a 2b-21ab 2-21a 3)-(-2a 2b+4ab 2) -51(5mn-5m 2+2n 2)-(-mn-5m 2-5n 2
) (4a 3-41a 2b+4)-21(a 2b-3) -2(31x 3-31y 3+41)-4(21x 3+31y 3-5
1)
9b 2-(4a 2-5b 2)-3b 2 4x+(2x-6)-(2
x -5) -5(ab-3a 2)+(ab-a 2
) a 2+31(ab+a 2)-6ab
-2(b+1)+2(-b-2)
31(x 2-y)+41(x-y 2)+5
1(x 2+y 2) -(-51x+2y)+(4
1x-2y) (4s+4)-2(s 2
-s+3)
-4(a 2b+21ab 2-21a 3)+(-2a 2b+3ab 2) -41(4mn+5m 2+4n 2)+(-53mn+2m 2+3n 2
) (4a 3-31a 2b+5)+31(a 2b+6) -3(21x 3-21y 3+31)-3(41x 3+41y 3+41)
5b 2-(3a 2-2b 2)+2b 2 7x+(2x-9)-(6
x +3) -2(ab+a 2)+(ab-4a 2
) 6a 2-31(4ab-3a 2)-7ab
-2(b-3)+5(-b+3)
51(x 2-y)-61(x-y 2)-6
1(x 2-y 2) -(-61x+4y)-(5
1x-y) (6s+4)-3(s 2
-s-4)
-(a 2b-21ab 2-21a 3)+(-2a 2b-3ab 2) -41(5mn-3m 2+4n 2)-(-mn+4m 2+5n 2
) (2a 3-31a 2b-4)-31(a 2b-5) -3(21x 3+31y 3-21)-4(31x 3+31y 3-51)
3b 2-(5a 2-5b 2)-3b 2 5x+(5x-2)-(5
x -1) -2(ab-3a 2)+(5ab-3a 2
) 6a 2-21(3ab+a 2)-ab
-2(b+2)-4(-b-3)
51(x 2-y)+41(x-y 2)+3
1(x 2-y 2) -(-61x+3y)-(3
1x-3y) (4s-1)+3(s 2
-s-2)
-4(a 2b-41ab 2+31a 3)-(-4a 2b+2ab 2) -31(5mn-3m 2+3n 2)+(-mn-3m 2-5n 2
) (3a 3-51a 2b-3)+21(a 2b+3) -2(41x 3-21y 3-21)-4(31x 3+41y 3+51)
4b 2-(4a 2-3b 2)+6b 2 9x+(5x-6)-(4
x -1) -3(ab-3a 2)-(3ab-a 2
) 2a 2-41(2ab+5a 2)-3ab
-3(b+2)-2(-b-4)
31(x 2-y)+41(x-y 2)+2
1(x 2-y 2) -(-41x+4y)+(4
1x-4y) (5s+1)+4(s 2
+s+3)
-2(a 2b+41ab 2-31a 3)-(-4a 2b+2ab 2) -41(5mn-2m 2-2n 2)-(-mn-4m 2+5n 2) (a 3-51a 2b-3)-51(a 2b-3) -2(41x 3-21y 3-41)-2(21x 3-41y 3-41)
9b 2-(2a 2-6b 2)+6b 2 5x+(x-6)-(3
x -5) -4(ab+3a 2)+(6ab-2a 2
) 3a 2-41(4ab+5a 2)-6ab
-4(b-1)-3(-b-2) 61(x 2-y)-61(x-y 2)+41(x 2-y 2) -(-21x+4y)-(5
1x-3y) (3s+4)-4(s 2+s-4)
-4(a 2b+41ab 2+41a 3)+(-2a 2b+2ab 2) -21(3mn+4m 2+2n 2)+(-23mn-2m 2-2n 2
) (2a 3-41a 2b+2)+21(a 2b+2) -4(21x 3+31y 3+31)-4(31x 3+21y 3+61)