Q. 9 G5.0( 1 Vote )

# Find the zeroes of the quadratic polynomial:4x2 — x — 5

Equating the expression with 0,

4x2 — x — 5 = 0

On factorising it further,

4x2 + 4x - 5x - 5 = 0

4x(x + 1) -5(x + 1)=0

(4x - 5) (x + 1) = 0 x = or x = -1 The zeroes of 4x2 — x — 5 are and -1.

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