八下 分式的基本性质约分:(2) 4x²+4x+1/1+2x (3) x+xy/y²-1 (4)a²-b²/a²-2ab+b² (5)4x-x²/16-x² (6)3x²+6xy+3y²/x²-y²

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八下 分式的基本性质约分:(2) 4x²+4x+1/1+2x (3) x+xy/y²-1 (4)a²-b²/a²-2ab+b² (5)4x-x²/16-x² (6)3x²+6xy+3y²/x²-y²
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八下 分式的基本性质约分:(2) 4x²+4x+1/1+2x (3) x+xy/y²-1 (4)a²-b²/a²-2ab+b² (5)4x-x²/16-x² (6)3x²+6xy+3y²/x²-y²
八下 分式的基本性质
约分:(2) 4x²+4x+1/1+2x (3) x+xy/y²-1 (4)a²-b²/a²-2ab+b² (5)4x-x²/16-x² (6)3x²+6xy+3y²/x²-y²

八下 分式的基本性质约分:(2) 4x²+4x+1/1+2x (3) x+xy/y²-1 (4)a²-b²/a²-2ab+b² (5)4x-x²/16-x² (6)3x²+6xy+3y²/x²-y²
你的题目解答如下:
(2) 4x²+4x+1/1+2x
=(2x+1)²/(2x+1)
=2x+1
(3) x+xy/y²-1
=x(y+1)/(y+1)(y-1)
=x/(y-1)
(4) a²-b²/a²-2ab+b²
=(a+b)(a-b)/(a-b)²
=(a+b)/(a-b)
(5) 4x-x²/16-x²
=x(4-x)/(4+x)(4-x)
=x/(4+x)
(6)3x²+6xy+3y²/x²-y²
=3(x²+2xy+y²)/(x+y)(x-y)
=3(x+y)²/(x+y)(x-y)
=3(x+y)/x-y

(2) 4x²+4x+1/1+2x
=(2x+1)²/(2x+1)
=2x+1
(3) x+xy/y²-1
=x(y+1)/(y+1)(y-1)
=x/(y-1)
(4) a²-b²/a²-2ab+b²
=(a+b)(a-b)/(a-b)²
=(a...

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(2) 4x²+4x+1/1+2x
=(2x+1)²/(2x+1)
=2x+1
(3) x+xy/y²-1
=x(y+1)/(y+1)(y-1)
=x/(y-1)
(4) a²-b²/a²-2ab+b²
=(a+b)(a-b)/(a-b)²
=(a+b)/(a-b)
(5) 4x-x²/16-x²
=x(4-x)/(4+x)(4-x)
=x/(4+x)
(6)3x²+6xy+3y²/x²-y²
=3(x²+2xy+y²)/(x+y)(x-y)
=3(x+y)²/(x+y)(x-y)
=3(x+y)/x-y

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