1.x^4 +5x^4 -3x^2 -7x^2+6x-52.6x^2 -2xy +y^2 -x^2 +6xy +4x -y +13.a^4 +3a^2 b+3ab^2 -6^4 +4a^2 b-6ab^2 +104.x^3 -5^2 +7x -4x^3 +6x^2-115.x^3 -3x^2 +7x-2-4x^2-5x +16.a^4 -2a^3 b-3ab^2-6ab+4a^3 b-5ab^2 +3ab合并同类项啊...

1、6 x^4-10x^2+6x-5
2、5x^2 +4xy +y^2 +4x -y +1
3、a^4 +7a^2 b-3ab^2 +（10-6^4）
4、-3x^3 +6x^2+7x-36
5、x^3 -7x^2 +2x-1
6、a^4 +2a^3 b-8ab^2-3ab

6x^4-10x^2+6x-5
5x^2+4xy+y^2-y+1
估计打错了，你再看看
估计有打错了
x^3-7x^2+2x+z
a^4+2a^3b-8ab^2-3ab

“不要过程,只需要速度.”你是在自欺欺人懒得费时间做这些会做的题目，还是自己根本就不会做啊。

6x^4-10x^2+6x-5
5x^2+4(y+1)x+y^2-y+1
a^4+7a^2 b+-3ab^2-1286
-3x^3+6x^2+7x-36
x^3-7x^2+2x-1
a^4-(8b+3)ba+2a^3 b

第3题和第4题你可能抄错了,我给改了
1.x^4 +5x^4 -3x^2 -7x^2+6x-5
= 6x^4 -10x^2+6x-5
2.6x^2 -2xy +y^2 -x^2 +6xy +4x -y +1=5x^2+4xy+y^2+4x -y +1
3.a^4 +3a^2 b+3ab^2 -6a^4 +4a^2 b-6ab^2 +10=-5a^4+7a^2 b-3ab^2 +10
4.x^3 -5x^2 +7x -4x^3 +6x^2-11= -3x^3 +x^2+7x-11
5.x^3 -3x^2 +7x-2-4x^2-5x +1= x^3-7x^2+2x+1
6.a^4 -2a^3 b-3ab^2-6ab+4a^3 b-5ab^2 +3ab= a^4+2a^3-8ab^2-3ab
如果没错
3.a^4 +3a^2 b+3ab^2 -6^4 +4a^2 b+10= a^4 +7a^2+3ab^2+1306
4.x^3 -5^2 +7x -4x^3 +6x^2-11=-3x^3+6x^2+7x-36
我希望你以后能认真完成作业,不要懒.学习这个东西市容不得懒的,

第3题和第4题你可能抄错了，我给改了
1. x^4 +5x^4 -3x^2 -7x^2+6x-5
= 6x^4 -10x^2+6x-5
2. 6x^2 -2xy +y^2 -x^2 +6xy +4x -y +1=5x^2+4xy+y^2+4x -y +1
3. a^4 +3a^2 b+3ab^2 -6a^4 +4a^2 b-6ab^2 +10=-5a^4+7a^2 b-3ab^2 +10
4. x^3 -5x^2 +7x -4x^3 +6x^2-11= -3x^3 +x^2+7x-11
5. x^3 -3x^2 +7x-2-4x^2-5x +1= x^3-7x^2+2x+1
6. a^4 -2a^3 b-3ab^2-6ab+4a^3 b-5ab^2 +3ab= a^4+2a^3-8ab^2-3ab
如果没错
3. a^4 +3a^2 b+3ab^2 -6^4 +4a^2 b+10= a^4 +7a^2+3ab^2+1306
4. x^3 -5^2 +7x -4x^3 +6x^2-11=-3x^3+6x^2+7x-36