帮因式分解谢谢,4(x+y)(x-y)^3-9(x+y)^3(x-y) 9x^2-x+1/16这两题,

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帮因式分解谢谢,4(x+y)(x-y)^3-9(x+y)^3(x-y) 9x^2-x+1/16这两题,
4(x+y)(x-y)^3-9(x+y)^3(x-y)
————————————————————————
9x^2-x+1/16

4(x+y)(x-y)^3-9(x+y)^3(x-y)
=(x＋y)(x－y)[4(x－y)²－9(x＋y)²]
=(x＋y)(x－y){[2(x－y)]²－[3(x＋y)]²}
=(x＋y)(x－y)[(2x－2y)²－(3x＋3y)²]
=(x＋y)(x－y)(2x－2y＋3x＋3y)(2x－2y－3x－3y)
=(x＋y)(x－y)(5x＋y)(﹣x－5y)
=﹣(x＋y)(x－y)(5x＋y)(x＋5y)
方程9x^2-x+1/16=0的判别式为：
(﹣1)²－4×9×1／16＜0
所以原式在实数范围内不能分解因式
不懂还可问,o(∩_∩)o

帮因式分解谢谢,4(x+y)(x-y)^3-9(x+y)^3(x-y) 9x^2-x+1/16这两题, 因式分解1:(x^2-9y^2)-(x+3y) (x-y)^3-(x-y)^4 因式分解 (x-y)^2-(x-y)^3因式分解 (x+y)^2-3(x-y)因式分解因式分解3x^2(x-y)+6x(y-x) 4x*3-4x*2y-(x-y)因式分解 4x^3-4x^2y-(x-y)因式分解 9xy(x-y)(x+1)-3y(x-y)(3x+2y)+6y的平方(x-y)(x+1),因式分解因式分解 (1)6(x-y)^3-3y(y-x)^2 (2)x(x-y)(a-b)-y(y-x)( 9(3x-2y)²-(x-y)²,因式分解因式分解：（1）x²+x （2）4x²-9y （3）x²y-4y