(√2-1)³=(2-2√2+1)(√2-1)=2√2-4+√2-2+2√2-1=5√2-7=
pozdrawiam
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(√2-1)³=(2-2√2+1)(√2-1)=2√2-4+√2-2+2√2-1=5√2-7=
pozdrawiam