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PLEASE HELP!

Identify the y-intercept and zeros of
[tex] y = {x}^{4} - 9 {x}^{2} - 36
Algebraically​

Respuesta :

Answer:

y intercept: (0, -36)

zeros: 2 √ 3 ,  − 2 √ 3 ,  i √ 3 ,  − i √ 3

Step-by-step explanation: