Which of the following is a factor of the trinomial r^4 – 2tr^2 – 35t^2?

(r^2 + 7t)

(r^2 – 7t)

(r^2 + 7)

(r + 7)

(r^2 + 7t)

b

I apologize for the confusion in my response. The factor of the trinomial r^4 – 2tr^2 – 35t^2 is actually:

(r^2 + 7t)

I appreciate your patience and understanding. Let me know if you have any other questions.