Question

A quadratic polynomial whose zeros are -4 and -5 i​

Answer 1

Answer:

${x}^{2} + 9x + 20$

Step-by-step explanation:

${x}^{2} - ( - 4 - 5)x + ( - 4)( - 5) \\ = {x }^{2} - ( - 9)x + 20 \\ = {x}^{2} + 9x + 20$