Question

Please answer it quickly. Find the discriminant of the given question

Answer 1

First square on both sides,

That gives, x^2-5x-1=4

= x^2-5x-5=0

Discriminant= b^2-4ac

Here, a=1, b=-5, c=-5

(-5)^2-4*1* -5

25+20

=45.

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