Respuesta :

Answer:

B. {-9, 5}

Step-by-step explanation:

First, subtract 50 from both sides: x^2-4x-45=0

Factor: (x+9)(x-5)=0

Zero Product Property: x+9=0 and x-5=0, x=-9 and x=5

So the solution set is B

Hope this helped!

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