谁能帮我解决数学难题啊
来源:学生作业帮 编辑:搜狗做题网作业帮 分类:数学作业 时间:2024/07/31 06:09:24
谁能帮我解决数学难题啊
因式分解
1.1/3X^2-4/3X-7 2.-a+11/2ab-6b^2
3.(x+y)^2-4(x+y)-12 4.(2x-y)^2-4x+2y
5.-6m^2+7mn-5/3n^2 6.(x^2+5x-2)(x^2+5x)-8
因式分解
1.1/3X^2-4/3X-7 2.-a+11/2ab-6b^2
3.(x+y)^2-4(x+y)-12 4.(2x-y)^2-4x+2y
5.-6m^2+7mn-5/3n^2 6.(x^2+5x-2)(x^2+5x)-8
![谁能帮我解决数学难题啊](/uploads/image/z/15374552-32-2.jpg?t=%E8%B0%81%E8%83%BD%E5%B8%AE%E6%88%91%E8%A7%A3%E5%86%B3%E6%95%B0%E5%AD%A6%E9%9A%BE%E9%A2%98%E5%95%8A)
1/3X^2-4/3X-7 =1/3(x-7)(x+3)
-a+11/2ab-6b^2 =-1/2(2a-3b)(a-4b)
(x+y)^2-4(x+y)-12 =(x+y-6)(x+y+2)
(2x-y)^2-4x+2y =(2x-y)(2x-y-2)
-6m^2+7mn-5/3n^2 =-1/3(3m-n)(6m-5)
(x^2+5x-2)(x^2+5x)-8 =(x^2+5x-4)(x^2+5x+2)
-a+11/2ab-6b^2 =-1/2(2a-3b)(a-4b)
(x+y)^2-4(x+y)-12 =(x+y-6)(x+y+2)
(2x-y)^2-4x+2y =(2x-y)(2x-y-2)
-6m^2+7mn-5/3n^2 =-1/3(3m-n)(6m-5)
(x^2+5x-2)(x^2+5x)-8 =(x^2+5x-4)(x^2+5x+2)