1.

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

Answer»

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



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