(х+2)(х-2)(х^2+4)-(4+х^2)^2=(х^2-4)(х^2+4)-(16+8х^2+х^4)=х^4-16-16-8х^2-х^4=-8х^2-32= -8(х^2+4)
Если х=1/2=0,5, то -8(х^2+4)=-8(0,5^2+4) =-8(0,25+4) =-8*4,25=-34
<span>b6=1/2, p=1/2
b6=b1q^5
1/2=b1(1/2)^5
b1=16
s6=b1(1-q^6)/(1-q)=16(1-1/2^6) : 1/2=32 (63/64)=63/2</span>
1.) 3300/100*10 = 330 - stoimost' sborki shkafa
2.) 3300+330 = 3630 - stoimost' vsej pokupki