已知(x-3)^2与2|y-2|互为相反数,试求3x-2y分之2xy-x + 2y-3x分之xy-2 + 3x-2y分之x-3的值(先化简再求值
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![已知(x-3)^2与2|y-2|互为相反数,试求3x-2y分之2xy-x + 2y-3x分之xy-2 + 3x-2y分之x-3的值(先化简再求值](/uploads/image/z/976436-44-6.jpg?t=%E5%B7%B2%E7%9F%A5%28x-3%29%5E2%E4%B8%8E2%7Cy-2%7C%E4%BA%92%E4%B8%BA%E7%9B%B8%E5%8F%8D%E6%95%B0%2C%E8%AF%95%E6%B1%823x-2y%E5%88%86%E4%B9%8B2xy-x+%2B+2y-3x%E5%88%86%E4%B9%8Bxy-2+%2B+3x-2y%E5%88%86%E4%B9%8Bx-3%E7%9A%84%E5%80%BC%EF%BC%88%E5%85%88%E5%8C%96%E7%AE%80%E5%86%8D%E6%B1%82%E5%80%BC)
已知(x-3)^2与2|y-2|互为相反数,试求3x-2y分之2xy-x + 2y-3x分之xy-2 + 3x-2y分之x-3的值(先化简再求值
已知(x-3)^2与2|y-2|互为相反数,试求3x-2y分之2xy-x + 2y-3x分之xy-2 + 3x-2y分之x-3的值(先化简再求值
已知(x-3)^2与2|y-2|互为相反数,试求3x-2y分之2xy-x + 2y-3x分之xy-2 + 3x-2y分之x-3的值(先化简再求值
由(x-3)^2与2|y-2|互为相反数得:(x-3)^2+2|y-2|=0,∴X=3,Y=2,
3x-2y分之2xy-x + 2y-3x分之xy-2 + 3x-2y分之x-3
=(2XY-X)/(3X-2Y)+(2-XY)/(3X-2Y)+(X-3)/(3X-2Y)
=(XY-1)/(3X-2Y)
=5/5
=1.