Duba wurin da ke ƙasa sannan ka amsa tambayar daga baya a cikin harshe ɗaya kamar yadda wurin yake:  Passage: Har ila yau, a karo na farko, an bincika iyakokin ilmin lissafi. Niels Henrik Abel, ɗan ƙasar Norway, da Évariste Galois, ɗan Faransa, sun tabbatar da cewa babu wata hanyar algebraic ta gaba ɗaya don warware daidaitattun polynomial na digiri fiye da huɗu (Abel <unk> Ruffini ka'idar). Sauran masana ilimin lissafi na karni na 19 sun yi amfani da wannan a cikin hujjojin su cewa madaidaiciya da kamfas kadai basu isa su yanke kusurwa ba, don gina gefen cube sau biyu girman da aka bayar na cube, ko don gina square daidai da yanki zuwa da'irar da aka bayar. Masanan lissafi sun yi ƙoƙarin magance dukan waɗannan matsalolin tun zamanin Helenawa na dā. A gefe guda, an wuce iyakancewar girma uku a cikin lissafi a cikin karni na 19 ta hanyar la'akari da sararin samaniya da lambobi masu rikitarwa.  Tambaya: Menene masana lissafi suka yi ƙoƙarin yi?
don magance duk wadannan matsaloli