Question

answer these questions,its argent
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Answer 1

x²-4x+1=0

one zero = 2+√3

so,

by quadratic formula

=-(-4)+-√(-4)² -4×1×1÷2×1

= 4+-√16-4÷2

=4+-√12÷2

=4+-2√3÷2

=2+√3 or 2-√3

So

x = 2+√3 or 2-√3