Question

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​

Answer 1

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: