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(1)x²;=9/4 =>x=±3/2 (2)(x-1)=2 =>x=3
原式可化為x(x+1)/(x+1)(x-5)=x/(x-5) 而x=(√3+√2)/(√3-√2)上下同時乘√3+√2得 x=5+2√6 所以原式=(5√6+12)/12 為了蘇維埃的榮耀,不懂再問
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