a^2-4a-1=0 then find the value of a^2+1/a^2+3a
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a²-4a-1=0
a=2+√5 and a= 2-√5
from here substitute into the real equation.
i am not doing it because i understand the question in two ways
a=2+√5 and a= 2-√5
from here substitute into the real equation.
i am not doing it because i understand the question in two ways
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