Question

Write a quadratic polynomial having zeros 1 and -2.

Answer 1

Answer:

Note:The quadratic polynomial can also be written directly by using the sum and product of zeroes as: p(x)=x2−(sum of zeroes)x+(product of zeroes).

Answer 2

Answer:

the required polynomial is

x^2 - (1-2)x +1×-2

hencex^2 -(-1)x -2

x^2 +1x -2