Find the zeroes of the quadratic polynomial:
5x2 - 4x — 1
Equating the expression with 0,
5x2 - 4x - 1 = 0
On factorising it further,
5x2 - 5x + x - 1 = 0
5x(x - 1) +1(x - 1)=0
(5x + 1) (x - 1) = 0
x = -
or x = 1
The zeroes of 5x2 - 4x — 1 are - 
and 1.
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