Question

Helppppppppppppppppppppppppppp

Answer 1

We rewrite the expresion:
 ((t+3)/(t+4))*(1/(t^2+7t+12))
 We have then
 ((t+3)/(t+4))*(1/((t+4)*(t+3)))
 Rewriting tge expression:
 (1/(t+4)^2)
 Answer:
 (1/(t+4)^2)
 opcion 3