(2y-1)(4y²+2y+1)-y(y-1)(y+1)=8у³-1-у³+у=7у³+у-1 7(1,5)³+1,5-1=23,625+0,5=24,125
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(2y-1)(4y²+2y+1)-y(y-1)(y+1)=8у³-1-у³+у=7у³+у-1 7(1,5)³+1,5-1=23,625+0,5=24,125