Question

write three quadratic polynomials that have 2 zeroes each

Answer 1

All Quadratic equation have two zeroes, depending upon the value of Discriminant, it is real and imaginary.
for example, x² - 3x +2 =0 have zeroes 1 and 2
x² + 4x +4 =0 have zeroes 2 and 2 
x² + 3x +2 =0 have zeroes -1 and -2

Answer 2

Quadratic polynomial has two(2)zeros.

For example:

1. $x {}^{2} - 3x + 2 = 0$It have zeros 1and 2
2. $x {}^{2} + 4x + 4 = 0$It have zeros 2 and 2