Question

a quadratic polynomial , whose zores are -4 and -5 is​

Answer 1

Answer :

x² + 9x + 20

Step-by-step explanation :

⇒ Given, zeroes of the polynomial are -4 and -5

=> Sum of zeroes = -4 + (-5)

                             = -4 - 5

                             = -9

=> Product of zeroes = (-4)(-5)

                                   = -20

The quadratic polynomial is of the form :

x² - (sum of zeroes)x + (product of zeroes)

x² - (-9)x + 20

x² + 9x + 20