求解!初中因式分解!求速度!要过程!(x²+y²)²-4x²y²5x²-2x+1/5(x²-2x)²+2x(x-2)+12m²n²+8mn+8+x(mn+2)²

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求解!初中因式分解!求速度!要过程!(x²+y²)²-4x²y²5x²-2x+1/5(x²-2x)²+2x(x-2)+12m²n²+8mn+8+x(mn+2)²
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求解!初中因式分解!求速度!要过程!(x²+y²)²-4x²y²5x²-2x+1/5(x²-2x)²+2x(x-2)+12m²n²+8mn+8+x(mn+2)²
求解!初中因式分解!求速度!要过程!

(x²+y²)²-4x²y²

5x²-2x+1/5

(x²-2x)²+2x(x-2)+1

2m²n²+8mn+8+x(mn+2)²

求解!初中因式分解!求速度!要过程!(x²+y²)²-4x²y²5x²-2x+1/5(x²-2x)²+2x(x-2)+12m²n²+8mn+8+x(mn+2)²
(x²+y²)²-4x²y²
=(x²+y²+2xy)(x²+y²-2xy)
=(x+y)²(x-y)²
5x²-2x+1/5
=1/5(25x²-10x+1)
=1/5(5x-1)²
(x²-2x)²+2x(x-2)+1
=(x²-2x+1)²
=(x-1)的4次方
2m²n²+8mn+8+x(mn+2)²
=2(mn+2)²+x(mn+2)²
=(mn+2)²(2+x)

(x²+y²)²-4x²y²
=(x²+y²-2xy)(x²+y²+2xy)
=(x-y)²(x+y)²
5x²-2x+1/5
=1/5 (25x²-10x+1)
=1/5(5x-1)²
(x²-2x)...

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(x²+y²)²-4x²y²
=(x²+y²-2xy)(x²+y²+2xy)
=(x-y)²(x+y)²
5x²-2x+1/5
=1/5 (25x²-10x+1)
=1/5(5x-1)²
(x²-2x)²+2x(x-2)+1
=(x²-2x+1)²
=【(x-1)²】²
=(x-1)的4次方
2m²n²+8mn+8+x(mn+2)²
=2(m²n²+4mn+4)+x(mn+2)²
=2(mn+2)²+x(mn+2)²
=(mn+2)²(2+x)

收起

1、原式=(x²+y²+2xy)-(x²+y²-2xy)
=(x+y)²-(x-y)²
=(x+y+x-y)-(x+y-x+y)
=2x-2y
2、原式=5(x²-2/5x+1/25)
=5(x-1/5)²