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合并同类项计算题50道目录
1. 合并同类项：$-2a2 + 3a2$
2. 合并同类项：$3x2 - 2x2$
3. 合并同类项：$5ab - ab + 3$
4. 合并同类项：$-4xy + 5xy$
5. 合并同类项：$-3mn + 2mn$
6. 合并同类项：$7a - 2a - 4a$
7. 合并同类项：$-8x2y + 6x2y$
8. 合并同类项：$9abc - abc$
9. 合并同类项：$-5a3 + 3a3$
10. 合并同类项：$-2xy + 4xy$
(x+5y)-(3y-4x)=x+5y-3y+4x1/2(x6^2-y)+1/3(x-y^2)+(x^2）（^为平方号）10a+6b-7a+3b-10a+10b+12a+8b4xy-2y+3x-xy(3x-5y)-(6x+7y)+(9x-2y) 2a-[3b-5a-(3a-5b)] (6m2n-5mn2)-6(m2n-mn2)(5x-4y-3xy)-(8x-y+2xy)a-(a-3b+4c)+3(-c+2b) 7x2-7xy+1 6-5b-(3a-2b)-(1-6b) (5x-4y-3xy)-(8x-y+2xy) (3x2-4xy+2y2)+(x2+2xy-5y2) (x-y)2-(x-y)2-[(x-y)2-(x-y)2] (2k-1)x2-(2k+1)x+32(x-2)-3x-2 2y-3y+1-6y3b-6c+4c-3a+4b 2a-5b+4c-7a+5a+5b-4c 4a+6c+7a-6a+7b-3c-6b 5b+2c-7b+4z-3z3b+3c-6a+8b-7c-2a 3c-7b+5z-7b+4a-6n+8b-3v+9n-7v
合并同类项计算题50道目录
1. 合并同类项：$-2a2 + 3a2$
2. 合并同类项：$3x2 - 2x2$
3. 合并同类项：$5ab - ab + 3$
4. 合并同类项：$-4xy + 5xy$
5. 合并同类项：$-3mn + 2mn$
6. 合并同类项：$7a - 2a - 4a$
7. 合并同类项：$-8x2y + 6x2y$
8. 合并同类项：$9abc - abc$
9. 合并同类项：$-5a3 + 3a3$
10. 合并同类项：$-2xy + 4xy$
(x+5y)-(3y-4x)=x+5y-3y+4x1/2(x6^2-y)+1/3(x-y^2)+(x^2）（^为平方号）10a+6b-7a+3b-10a+10b+12a+8b4xy-2y+3x-xy(3x-5y)-(6x+7y)+(9x-2y) 2a-[3b-5a-(3a-5b)] (6m2n-5mn2)-6(m2n-mn2)(5x-4y-3xy)-(8x-y+2xy)a-(a-3b+4c)+3(-c+2b) 7x2-7xy+1 6-5b-(3a-2b)-(1-6b) (5x-4y-3xy)-(8x-y+2xy) (3x2-4xy+2y2)+(x2+2xy-5y2) (x-y)2-(x-y)2-[(x-y)2-(x-y)2] (2k-1)x2-(2k+1)x+32(x-2)-3x-2 2y-3y+1-6y3b-6c+4c-3a+4b 2a-5b+4c-7a+5a+5b-4c 4a+6c+7a-6a+7b-3c-6b 5b+2c-7b+4z-3z3b+3c-6a+8b-7c-2a 3c-7b+5z-7b+4a-6n+8b-3v+9n-7v
