几道数学题,分解公因式的,a-1+1/a+11/2axy+2/3bx^2-3/4xy^21/(4x^2-4y^2)+(3x)/(2x^2-4xy^2+2y^2)(x+2)/(x-2)—(x^2+2x)/(x^2-4)搞错,是分式分解,对不起
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![几道数学题,分解公因式的,a-1+1/a+11/2axy+2/3bx^2-3/4xy^21/(4x^2-4y^2)+(3x)/(2x^2-4xy^2+2y^2)(x+2)/(x-2)—(x^2+2x)/(x^2-4)搞错,是分式分解,对不起](/uploads/image/z/10223924-68-4.jpg?t=%E5%87%A0%E9%81%93%E6%95%B0%E5%AD%A6%E9%A2%98%2C%E5%88%86%E8%A7%A3%E5%85%AC%E5%9B%A0%E5%BC%8F%E7%9A%84%2Ca-1%2B1%2Fa%2B11%2F2axy%2B2%2F3bx%5E2-3%2F4xy%5E21%2F%EF%BC%884x%5E2-4y%5E2%EF%BC%89%2B%EF%BC%883x%EF%BC%89%2F%EF%BC%882x%5E2-4xy%5E2%2B2y%5E2%EF%BC%89%EF%BC%88x%2B2%EF%BC%89%2F%EF%BC%88x-2%EF%BC%89%E2%80%94%28x%5E2%2B2x%29%2F%EF%BC%88x%5E2-4%EF%BC%89%E6%90%9E%E9%94%99%EF%BC%8C%E6%98%AF%E5%88%86%E5%BC%8F%E5%88%86%E8%A7%A3%EF%BC%8C%E5%AF%B9%E4%B8%8D%E8%B5%B7)
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几道数学题,分解公因式的,a-1+1/a+11/2axy+2/3bx^2-3/4xy^21/(4x^2-4y^2)+(3x)/(2x^2-4xy^2+2y^2)(x+2)/(x-2)—(x^2+2x)/(x^2-4)搞错,是分式分解,对不起
几道数学题,分解公因式的,
a-1+1/a+1
1/2axy+2/3bx^2-3/4xy^2
1/(4x^2-4y^2)+(3x)/(2x^2-4xy^2+2y^2)
(x+2)/(x-2)—(x^2+2x)/(x^2-4)
搞错,是分式分解,对不起
几道数学题,分解公因式的,a-1+1/a+11/2axy+2/3bx^2-3/4xy^21/(4x^2-4y^2)+(3x)/(2x^2-4xy^2+2y^2)(x+2)/(x-2)—(x^2+2x)/(x^2-4)搞错,是分式分解,对不起
a-1+1/a+1
=[(a-1)(a+1)+1]/(a+1)
=(a^2-1+1)/(a+1)
=a^2/(a+1)
1/2axy+2/3bx^2-3/4xy^2
=(6bxy+8ay^2-9abx)/(12abx^2y^2)
1/(4x^2-4y^2)+(3x)/(2x^2-4xy^2+2y^2)
=1/4(x-y)(x+y)+3x/2(x-y)^2
=[(x-y)+6x(x+y)]/[4(x+y)(x-y)^2]
=(x-y+6x^2+6xy)/[4(x+y)(x-y)^2]
(x+2)/(x-2)—(x^2+2x)/(x^2-4)
=(x^2+4x+4-x^2-2x)/x+2)(x-2)
=(2x+4)/x+2)(x-2)
=2/(x-2)
分解公因式(ab+a)+(b+1)
几道数学题,分解公因式的,a-1+1/a+11/2axy+2/3bx^2-3/4xy^21/(4x^2-4y^2)+(3x)/(2x^2-4xy^2+2y^2)(x+2)/(x-2)—(x^2+2x)/(x^2-4)搞错,是分式分解,对不起
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