2b³-8b²+2
2*(-1/2)³-8*(-1/2)²+2=2*(-1/8)-8*1/4+2=-1/4-2+2=-1/4
Witam,
2b³-(4b²-1)*2 b=-1/2
2*(-1/2)³-(4*1/4 -1)*2=-2*1/8-(1-1)*2=-1/4-0=-1/4
proszę bardzo, pozdrawiam :)
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2b³-8b²+2
2*(-1/2)³-8*(-1/2)²+2=2*(-1/8)-8*1/4+2=-1/4-2+2=-1/4
Witam,
2b³-(4b²-1)*2 b=-1/2
2*(-1/2)³-(4*1/4 -1)*2=-2*1/8-(1-1)*2=-1/4-0=-1/4
proszę bardzo, pozdrawiam :)