(X-9y)/(6xy^2-(x+3y)/(9x^2y)_数学解答

(X-9y)/(6xy^2-(x+3y)/(9x^2y)

人气：374 ℃　时间：2020-03-27 05:25:40

解答

3x(x-9y)/18x²y²-2y(x+3y)/18x²y²
=(3x²-27xy-2xy-6y²)/18x²y²
=(3x²-29xy-6y²)/18x²y²