(х-3)(х^2-8х+5)-(х-8)(х^2-3х+5)

Question

(х-3)(х^2-8х+5)-(х-8)(х^2-3х+5)

Answer 1

(х-3)(х²-8х+5)-(х-8)(х²-3х+5)=х³-8х²+5х-3х²+24х-15-(х³-3х²+5х-8х²+24х-40)=х³-8х²+5х-3х²+24х-15-(х³-11х²+29х-40)=х³-8х²+5х-3х²+24х-15-х³+11х²-29х+40=0+0+25=25.