Question

Write a quadratic polynomial, sum of whose zeroes is 3 and product is -18.​

Answer 1

x²-3x-18 is the answer.

Sum of zeroes = -b/a = 3

Product of zeroes = c/a = -18

Hope this helps...

Answer 2

Let α and β are the roots of given Quadratic polynomial.

Given:

α+β = 3 , αβ = -18

Quadratic polynomial :- x² - (α+β)x + (αβ)

∴ Polynomial is x² − 3x - 18