=6+9*6/25-6*6/5*3
=6+54/25-12/5
=6+54/25-60/25
=6-6/25
=150/25-6/25
=144/25
解:(√6)²+(3√6/5)²-2x√6x3√6/5x1/3=6+54/25-12/5=150/25+54/25-60/25=204/25-60/25=144/25
