有关因式分解的题!2、6x²-7xy+2y²; x²+144y²-25xy; 6x²-13x+6; 2x²-56x²-7xy+2y²; x²+144y²-25xy; 6x²-13x+6; 2x²-5x+3; 2x²+7x+3 -x²-x-56 12x²-11那-x²-x+56
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有关因式分解的题!2、6x²-7xy+2y²; x²+144y²-25xy; 6x²-13x+6; 2x²-56x²-7xy+2y²; x²+144y²-25xy; 6x²-13x+6; 2x²-5x+3; 2x²+7x+3 -x²-x-56 12x²-11那-x²-x+56
有关因式分解的题!2、6x²-7xy+2y²; x²+144y²-25xy; 6x²-13x+6; 2x²-5
6x²-7xy+2y²; x²+144y²-25xy; 6x²-13x+6; 2x²-5x+3; 2x²+7x+3 -x²-x-56 12x²-11
那-x²-x+56因式分解是什么?还有12x²-11x-15; 5x²-4x-1; 6x²-13x+6;6x²-13x-15; -6x²+12-x;
有关因式分解的题!2、6x²-7xy+2y²; x²+144y²-25xy; 6x²-13x+6; 2x²-56x²-7xy+2y²; x²+144y²-25xy; 6x²-13x+6; 2x²-5x+3; 2x²+7x+3 -x²-x-56 12x²-11那-x²-x+56
6x²-7xy+2y²;
=(2x-y)(3x-2y)
x²+144y²-25xy;
=x^2-25xy+144y^2
=(x-9y)(x-16y)
6x²-13x+6;
=(2x-3)(3x-2)
2x²-5x+3;
=(x-1)(2x-3)
2x²+7x+3
=(x+3)(2x+1)
-x²-x-56
=-(x^2+x+56)
题目有误
-x^2-x+56
=-(x^2+x-56)
=-(x-7)(x+8)
12x²-11xy-15y^2
=(3x-5y)(4x+3y)
12x²-11x-15;
=(3x-5)(4x+3)
5x²-4x-1;
=(5x+1)(x-1)
6x²-13x+6;
=(3x-2)(2x-3)
6x²-13x-15;
=(x-3)(6x+5)
-6x²+12-x;
题目错了
6x²-7xy+2y²=(2x-1)(3x-2);
x²+144y²-25xy=(x-16y)+(x-9y);
6x²-13x+6=(2x-3)(3x-2);
2x²-5x+3=(2x-3)(x-1);
2x²+7x+3=(2x+1)(x+3)
-x²-x-56 无解
12x²-11xy-15y²=(3x-5y)(4x+3y)
6x²-7xy+2y²=(2x-y)(3x-2y)
x²+144y²-25xy=
6x²-13x+6=(2x-3)(3x-2)
2x²-5x+3=(2x-3)(x-1)
2x²+7x+3=(2x+1)(x+3)
x²-x-56 =(x+7)(x-8)
6x²-7xy+2y²=(2x-y)(3x-2y)
x²+144y²-25xy=(x-9y)(x-16y)
6x²-13x+6=(2x-3y)(3x-2y)
2x²-5x+3=(x-1)(2x-3)
2x²+7x+3=(2x+1)(x+3)
-x²-x-56这个错的,应该是x²-x-56=(x-8)(x+7)
12x²-11xy-15y²=(3x-5y)(4x+3y)