Q. 9 F3.7( 3 Votes )

Find the zeroes of the quadratic polynomial:

3x2 + 5x + 2

Answer :

Equating the expression with 0,


3x2 + 5x + 2 = 0


On factorising it further,


3x2 + 3x + 2x + 2 = 0


3x(x + 1) + 2(x + 1) = 0


(3x + 2) (x + 1) = 0


x = - or x = -1


The zeroes of 3x2 + 5x + 2 are – and -1.


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