If the product of two zeroes of the polynomial f(x)=2x^ 3 +6x^ 2 -4x+9 is 3 , then the value of the third zero is
A) 2/3
B) 3/2
C) -2/3
D) -3/2
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Answer:Third zero is x= -3/2
product of 3 roots of cubic polynomial roots are - d/a
so r1 x r2xr3 = -9/2
3x r3= -9/2
r3= -3/2
Third zero is x= -3/2
Step-by-step explanation:
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