因式分解:(1)ax2-4axy-a+4ay2(2)(a-b)(3a+b)2+(a+3b)2(b-a)(3)(x2+3x
来源:学生作业帮 编辑:大师作文网作业帮 分类:数学作业 时间:2024/09/21 18:50:12
因式分解:
(1)ax2-4axy-a+4ay2
(2)(a-b)(3a+b)2+(a+3b)2(b-a)
(3)(x2+3x-2)(x2+3x+4)-16.
(1)ax2-4axy-a+4ay2
(2)(a-b)(3a+b)2+(a+3b)2(b-a)
(3)(x2+3x-2)(x2+3x+4)-16.
(1)ax2-4axy-a+4ay2,
=a(x2-4xy-1+4y2),
=a[(x-2y)2-1],
=a(x-2y-1)(x-2y+1);
(2)(a-b)(3a+b)2+(a+3b)2(b-a),
=(a-b)(3a+b)2-(a+3b)2(a-b),
=(a-b)[(3a+b)2-(a+3b)2],
=(a-b)(3a+b+a+3b)(3a+b-a-3b),
=8(a-b)2(a+b);
(3)(x2+3x-2)(x2+3x+4)-16,
=[(x2+3x)2+2(x2+3x)-8]-16,
=(x2+3x)2+2(x2+3x)-24,
=(x2+3x+6)(x2+3x-4),
=(x2+3x+6)(x+4)(x-1).
=a(x2-4xy-1+4y2),
=a[(x-2y)2-1],
=a(x-2y-1)(x-2y+1);
(2)(a-b)(3a+b)2+(a+3b)2(b-a),
=(a-b)(3a+b)2-(a+3b)2(a-b),
=(a-b)[(3a+b)2-(a+3b)2],
=(a-b)(3a+b+a+3b)(3a+b-a-3b),
=8(a-b)2(a+b);
(3)(x2+3x-2)(x2+3x+4)-16,
=[(x2+3x)2+2(x2+3x)-8]-16,
=(x2+3x)2+2(x2+3x)-24,
=(x2+3x+6)(x2+3x-4),
=(x2+3x+6)(x+4)(x-1).
因式分解:(1)ax2+2ax+a;(2)9(a+b)2-4(a-b)2;(3)x2(2x-5)+4(5-2x);(4)
因式分解3(a^4+a^2b^2+b^4)-9a^2b^2
因式分解a(a+b)-(3ab-b^2)
因式分解(a-2b)(3a+4b)+(2a-3b)=(a-2b)(
因式分解 (a^2 -2ab-b^3)除以b-(a+b)(a-b)
因式分解:x^2y^2-4x a(a-b)-2b(b-a)
已知:A=ax2+x-1,B=3x2-2x+1(a为常数)
因式分解16a(a-b)的平方(4a(a-b)-3b)
数学题目(因式分解)3x^2-2x+1/39(a+b)^2+30(a-b)(a+b)+25(a+b)^2(x^2-2x)
因式分解1.9(a+b)^2+12(a+b)+4 2.(a^3+4a^2+4a)÷(a^2+2a) 3.3(y-x)^2
因式分解:(a-b)(3a+b)2+(a+3b)2(b-a).
因式分解:(1)-4a3b2+10a2b-2ab;(2)6(x+y)2-2(x+y);(3)-7ax2+14axy-7a