x+3/2x-4 : 3x+9/x^2-4=x+3/2(x-2) : 3(x+3)/(x-2)(x+2)=x+3/2(x-2)*(x-2)(x+2)/3(x+3)=
=(x+2)/6
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x+3/2x-4 : 3x+9/x^2-4=x+3/2(x-2) : 3(x+3)/(x-2)(x+2)=x+3/2(x-2)*(x-2)(x+2)/3(x+3)=
=(x+2)/6
давайте скажу варианты ответов...
а) а+2 / 6
б)3(х+3)^2 / 2(х-2)^2(х+2)
в) х