用因式分解做 3ax^2-3ay^2 2x^3-8x -9x^2y+y x^4-16 2x^4-2 我还不是很会

来源：学生作业帮编辑：神马作文网作业帮分类：数学作业时间：2024/09/28 05:28:46

用因式分解做 3ax^2-3ay^2 2x^3-8x -9x^2y+y x^4-16 2x^4-2 我还不是很会
①3ax^2-3ay^2
②2x^3-8x
③-9x^2y+y
④x^4-16
⑤2x^4-2

3ax²-3ay²
=3a(x²-y²)
=3a(x+y)(x-y)
2x³-8x
=2x(x²-4)
=2x(x+2)(x-2)
-9x²y+y
=-y(9x²-1)
=-y(3x+1)(3x-1)
x^4-16
=(x²+4)(x²-4)
=(x²+4)(x+2)(x-2)
2x^4-2
=2(x^4-1)
=2(x²+1)(x²-1)
=2(x²+1)(x+1)(x-1)

用因式分解做 3ax^2-3ay^2 2x^3-8x -9x^2y+y x^4-16 2x^4-2 我还不是很会 4x*3-4x*2y-(x-y)因式分解 4x^3-4x^2y-(x-y)因式分解因式分解3x^2(x-y)+6x(y-x) (x-y)^2-(x-y)^3因式分解 (x+y)^2-3(x-y)因式分解已知集合A={（x,y)| (y-3)/ (x-1)=2,x,y∈R},B={（x,y)| 4x+ay=16,x,y∈ 因式分解4x²+4xy-2ax+2bx+y²-ay+by-ab 4x(y-x)-y^2因式分解 x^2-y^2-2x-4y-3因式分解因式分解x^2-y^2+4x-2y+3 因式分解3x^4+x^2y-2y^2