4xy-(x2-4y2)怎么因式分解帮我分解

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4xy-(x2-4y2)怎么因式分解帮我分解
4xy-(x2-4y2)怎么因式分解
帮我分解

4xy-(x2-4y2)怎么因式分解帮我分解
4xy-x^2+4y^2
=x^2+4xy+4y^2-2x^2
=(x+2y)^2-(√2x)^2
=(x+2y-√2x)(x+2y+√2x)
=[(1-√2)x+2y][(1+√2)x+2y]

4xy-(x2-4y2)
=-(x2-4xy-4y2)
=-(x2-4xy+4y2-8y2)
=-[(x-2y)2-8y2]
=-(x-2y-2y倍根号2）（x-2y+2y倍根号2)

4xy-(x2-4y2)怎么因式分解帮我分解 4xy-(x2-4y2)怎么因式分解 (x2+xy+y2)-4xy(x2+y2)因式分解 -4x2+3xy+2y2 因式分解怎么解 -x2-4y2+4xy因式分解因式分解 4x2-4xy+y2-a2 x2+y2-x2y-4xy-1因式分解 x2+3xy-4y2因式分解 4x2+3xy-2y2因式分解 X2-3xy-4y2因式分解告诉因式分解：3x2+4xy-y2 3x2+4xy-y2因式分解 3x2-4xy+y2 因式分解 4x2-6xy-3y2因式分解怎么做啊?我会及时采纳的! (x2+xy+y2)-4xy(x2+y2) 因式分解x2-4xy+4y2+x-2y-2 x2-4xy+4y2-x+2y-2因式分解 4x2 +4xy-3y2-8x+3 因式分解