需要50道因式分解题目以及过程
1个回答
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(1)3x^2-6x=3x(x-2)
(2)49x^2-25=(7x+5)(7x-5)
(3)6x^2-13x+5=(2x-1)(3x-5)
(4)x^2+2-3x=(x-1)(x-2)
(5)12x^2-23x-24=(3x-8)(4x+3)
(6)(x+6)(x-6)-(x-6)=(x-6)(x+5)
(7)3(x+2)(x-5)-(x+2)(x-3)=2(x-6)(x+2)
(8)9x^2+42x+49=(3x+7)^2
(9)x(x+2)-x=x(x+1)
(10)x^2-4x-ax+4a=(x-4)(x-a)
(11)25x^2-49=(5x-9)(5x+9)
(12)36x^2-60x+25=(6x-5)^2
(13)4x^2+12x+9=(2x+3)^2
(14)x^2-9x+18=(x-3)(x-6)
(15)2x^2-5x-3=(x-3)(2x+1)
(16)12x^2-50x+8=2(6x-1)(x-4)
(2)49x^2-25=(7x+5)(7x-5)
(3)6x^2-13x+5=(2x-1)(3x-5)
(4)x^2+2-3x=(x-1)(x-2)
(5)12x^2-23x-24=(3x-8)(4x+3)
(6)(x+6)(x-6)-(x-6)=(x-6)(x+5)
(7)3(x+2)(x-5)-(x+2)(x-3)=2(x-6)(x+2)
(8)9x^2+42x+49=(3x+7)^2
(9)x(x+2)-x=x(x+1)
(10)x^2-4x-ax+4a=(x-4)(x-a)
(11)25x^2-49=(5x-9)(5x+9)
(12)36x^2-60x+25=(6x-5)^2
(13)4x^2+12x+9=(2x+3)^2
(14)x^2-9x+18=(x-3)(x-6)
(15)2x^2-5x-3=(x-3)(2x+1)
(16)12x^2-50x+8=2(6x-1)(x-4)
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