[질문] x제곱 -ax +1=0일때 x제곱+x제곱분의일을 a로나타내면?

x제곱=ax+1이고 x제곱분의일=a분의x-1이되고 x분의일=a-x가됩니다따라서x제곱+x제곱분의일=ax+1+a분의x-1=a제곱-ax+ax+1이므로a제곱+1입니다~