A Span Classsearchtermspan Classsearchtermcollectionspanspan of
A Span Classsearchtermspan Classsearchtermcollectionspanspan of
James Matteson
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\i cp^ — 'labp — ahc be taken for the root of (10), we have ab — (to — bo 2abc, ^, ^ .^-____ ^ QJ. — ... (11 ). a (I From (4), x^=---^ — ^25 ^^^ since wi^=:a^zb2(m-|->^*, ^'^ n{9i±:2a) . . . (12). If we substitute for n in (12), its value as showm in (9), we shall get \aopKjp-±. A){[}-±Lb) ' ' ' ^ ^' If, in (13), M-e substitute iov p its first value in (11), or that in (ll')i using the -}- sign in the binomial factors of the denominator, wo shall find — \ {ab—ac—bcy—iabc' ^ '^'~Sabc(ar~ab—bc)(a...b--ac-i-bc)(ab^-ac—bc) ' ' * ^ ^* When the relation between a, b, c, is such as to make the numeri- (^al value of ic in (14) negative, (C) becomes [a^x'^-\-ax=[^ . . . (l')» b'x''-i-bx=[J . . . (2'), c'x'-^ex==^[J . . . (3')].. • (C); then ^ ^ (al, _a, _. L, cY-.^abc^ y ^ ^ Sabc(ab — ac — bc)(ab — ac-rbc){ab-rac — be) ' ' ' ^ ^ '' This shows that for such positive values of a, Z>, (", the conditions of (C) are im])ossible, by the general method, Avhei] positive an- wers are requii'cd, and that (C) must be changed to (C), that the problem may be possible; a'V, ^V, c^x-^ being three square num- bers, such, that if each be added to its respective root, the sums will be rational squares.
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