(a-b)的n+1次方-(a-b)的n次方 因式分解(x²+4)²-16x²80x²(x+y)-45y²(x+y)(x²+2x)²-2(x²+2x)+14x²y²-(x²+y²)²4a²-9b²+2a-3b

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(a-b)的n+1次方-(a-b)的n次方 因式分解(x²+4)²-16x²80x²(x+y)-45y²(x+y)(x²+2x)²-2(x²+2x)+14x²y²-(x²+y²)²4a²-9b²+2a-3b

(a-b)的n+1次方-(a-b)的n次方 因式分解(x²+4)²-16x²80x²(x+y)-45y²(x+y)(x²+2x)²-2(x²+2x)+14x²y²-(x²+y²)²4a²-9b²+2a-3b
(a-b)的n+1次方-(a-b)的n次方 因式分解
(x²+4)²-16x²
80x²(x+y)-45y²(x+y)
(x²+2x)²-2(x²+2x)+1
4x²y²-(x²+y²)²
4a²-9b²+2a-3b

(a-b)的n+1次方-(a-b)的n次方 因式分解(x²+4)²-16x²80x²(x+y)-45y²(x+y)(x²+2x)²-2(x²+2x)+14x²y²-(x²+y²)²4a²-9b²+2a-3b
(a-b)的n+1次方-(a-b)的n次方
=(a-b)^n ·(a-b-1)

(x²+4)²-16x²
=(x²+4+4x)(x²+4-4x )
=(x+2)²(x-2)²

80x²(x+y)-45y²(x+y)
=5(x+y) (16x^2 - 9y^2)
=5(x+y)(4x+3y)(4x -3y)

肯定对
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=(a-b)的(n-1-n)次方
=(a-b)的1次方
=a-b