Qual � o resultado da express�o [ ( 1 )x� + ( -2 )x + ( -493 ) ] = 0 (C�lculo e Resposta) ?

Desenvolvimento Alg�brico
[ ( 1 )x² + ( -2 )x + ( -493 ) ] = 0

a = ( 1 );
b = ( -2 );
c = ( -493 );

Calculando Δ
Δ = b² - 4.a.c
Δ = {( -2 )² - [ 4.( 1 ).( -493 ) ]}
Δ = 1976

C�lculo das Ra�zes
X' = {-b + ²√Δ} / {2.a}
X' = { 2 + ²√( 1976 } / { 2.( 1 )}
X' = ( 23,22611077 );

X" = {-b - ²√Δ} / {2.a}
X" = { 2 - ²√( 1976 )} / { 2.( 1 )}
X" = ( -21,22611077 );

Solu��o / Resposta
S = { 23,22611077 , -21,22611077 }