3. {4 points} Consider at] = $3 +3$ + 1. Show that f {1'} has at least one root in the interval {Milli}. Explain your reasoning. Use Newton's method to approximate the root that lies in the interval [, D]. Stop when the next iteration agrees with the previous one to two decimal places. You are onlyr allowed to use technologyr for basic arithmetic. Use at least 5 decimal places in each estimate