1. ㎡(p-q)-p+q;
来源:学生作业帮 编辑:拍题作业网作业帮 分类:数学作业 时间:2024/04/28 16:02:49
1. ㎡(p-q)-p+q;
2.a(ab+bc+ac)-abc;
3.x4-2y4-2x3y+xy3;
4.abc(a2+b2+c2)-a3bc+2ab2c2;
5.a2(b-c)+b2(c-a)+c2(a-b);
6.(x2-2x)2+2x(x-2)+1;
7.(x-y)2+12(y-x)z+36z2;
8.x2-4ax+8ab-4b2;
9.(ax+by)2+(ay-bx)2+2(ax+by)(ay-bx);
10.(1-a2)(1-b2)-(a2-1)2(b2-1)2;
2.a(ab+bc+ac)-abc;
3.x4-2y4-2x3y+xy3;
4.abc(a2+b2+c2)-a3bc+2ab2c2;
5.a2(b-c)+b2(c-a)+c2(a-b);
6.(x2-2x)2+2x(x-2)+1;
7.(x-y)2+12(y-x)z+36z2;
8.x2-4ax+8ab-4b2;
9.(ax+by)2+(ay-bx)2+2(ax+by)(ay-bx);
10.(1-a2)(1-b2)-(a2-1)2(b2-1)2;
1. ㎡(p-q)-p+q
= ㎡(p-q)-(p-q)
=(p-q)(m²-1)
=(p-q)(m-1)(m+1)
2.a(ab+bc+ac)-abc
=a²b+abc+a²c-abc
=(b+c)a²
3.x4-2y4-2x3y+xy3
=x4-2x3y+xy3-2y4
=x³(x-2y)+y³(x+2y)
=(x-2y)(x³+y³)
再问: 还有呢?
再答: 太多了,我还有作业要做
再问: 求你了,帮帮忙吧。。。我再追加5分
再答: 4.abc(a2+b2+c2)-a3bc+2ab2c2; =a³bc+b³ac+c³ab+-a³bc+2ab²c² =b³ac+c³ab+2ab²c² =abc(b²+c²+2bc) =abc(b+c)² 5.a2(b-c)+b2(c-a)+c2(a-b); =a²b-a²c+b²c-ab²+ac²-bc² 6.(x2-2x)2+2x(x-2)+1; =x4+4x²-4x³+2x²-4x+1 =x4-4x³+6x²-4x+1 7.(x-y)2+12(y-x)z+36z2; =x²-2xy+y²+12yz-12xz+36z² =(x-y-6z)² 8.x2-4ax+8ab-4b2; =(x²-4b²)-4ax+8ab =(x+2b)(x-2b)-4a(x-2b) =(x-2b)(x+2b-4a) 9.(ax+by)2+(ay-bx)2+2(ax+by)(ay-bx); =(ax+by)2+(ay-bx)2+(ax+by)(ay-bx)+(ax+by)(ay-bx) =(ax+by)(ax+by+ay-bx)+(ay-bx)(ax+by+ay-bx) =(ax+by+ay-bx)² 10.(1-a2)(1-b2)-(a2-1)2(b2-1)2 =(a2-1)(b2-1)-(a2-1)2(b2-1)2 =【(a+1)(a-1)(b+1)(b-1)】【1-(a²-1)(b²-1)】 =【(a+1)(a-1)(b+1)(b-1)】【a²b²+a²+b²】 全都做完了,费了很长时间……采纳吧,记得加上你后来给的5分
= ㎡(p-q)-(p-q)
=(p-q)(m²-1)
=(p-q)(m-1)(m+1)
2.a(ab+bc+ac)-abc
=a²b+abc+a²c-abc
=(b+c)a²
3.x4-2y4-2x3y+xy3
=x4-2x3y+xy3-2y4
=x³(x-2y)+y³(x+2y)
=(x-2y)(x³+y³)
再问: 还有呢?
再答: 太多了,我还有作业要做
再问: 求你了,帮帮忙吧。。。我再追加5分
再答: 4.abc(a2+b2+c2)-a3bc+2ab2c2; =a³bc+b³ac+c³ab+-a³bc+2ab²c² =b³ac+c³ab+2ab²c² =abc(b²+c²+2bc) =abc(b+c)² 5.a2(b-c)+b2(c-a)+c2(a-b); =a²b-a²c+b²c-ab²+ac²-bc² 6.(x2-2x)2+2x(x-2)+1; =x4+4x²-4x³+2x²-4x+1 =x4-4x³+6x²-4x+1 7.(x-y)2+12(y-x)z+36z2; =x²-2xy+y²+12yz-12xz+36z² =(x-y-6z)² 8.x2-4ax+8ab-4b2; =(x²-4b²)-4ax+8ab =(x+2b)(x-2b)-4a(x-2b) =(x-2b)(x+2b-4a) 9.(ax+by)2+(ay-bx)2+2(ax+by)(ay-bx); =(ax+by)2+(ay-bx)2+(ax+by)(ay-bx)+(ax+by)(ay-bx) =(ax+by)(ax+by+ay-bx)+(ay-bx)(ax+by+ay-bx) =(ax+by+ay-bx)² 10.(1-a2)(1-b2)-(a2-1)2(b2-1)2 =(a2-1)(b2-1)-(a2-1)2(b2-1)2 =【(a+1)(a-1)(b+1)(b-1)】【1-(a²-1)(b²-1)】 =【(a+1)(a-1)(b+1)(b-1)】【a²b²+a²+b²】 全都做完了,费了很长时间……采纳吧,记得加上你后来给的5分
1. ㎡(p-q)-p+q;
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