因式分解: (1)-4a3b2+10a2b-2ab; (2)6(x+y)2-2(x+y); (3)-7ax2+14axy-7ay2; (4)25(a-b)2-16(a+b)2; (5)(x2+y2)2-4x2y2; (6)a2+2ab+b2
因式分解:
(1)-4a3b2+10a2b-2ab;
(2)6(x+y)2-2(x+y);
(3)-7ax2+14axy-7ay2;
(4)25(a-b)2-16(a+b)2;
(5)(x2+y2)2-4x2y2;
(6)a2+2ab+b2-1.
(1)-4a3b2+10a2b-2ab;
(2)6(x+y)2-2(x+y);
(3)-7ax2+14axy-7ay2;
(4)25(a-b)2-16(a+b)2;
(5)(x2+y2)2-4x2y2;
(6)a2+2ab+b2-1.
数学人气:144 ℃时间:2019-10-24 12:28:18
优质解答
(1)-4a3b2+10a2b-2ab=-2ab(2a2b-5a+1);(2)6(x+y)2-2(x+y),=2(x+y)[3(x+y)-1],=2(x+y)(3x+3y-1);(3)-7ax2+14axy-7ay2,=-7a(x2-2xy+y2),=-7a(x-y)2;(4)25(a-b)2-16(a+b)2,=[5(...
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