The equation d = 5t ^ 2 - 120t + 750 models the distance a rocket is from a nearby star , where d represents the distance in thousands of miles , and t represents the time in minutes . If the rocket comes within 50 thousand miles f the star , the shields will fail and the rocket will burn up . Use your equation to determine whether the rocket will burn up . a Clearly explain your reasoning

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Polynomials

Try substituting 1. You will get 6 and not 0. Try other real values also. What About -2? Let us check.