Q. 9 C5.0( 2 Votes )

# 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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