4. Find the Critical Points of the Function The problem is presented on page 13 of the document. Use calculus to determine the critical points and classify them as maxima, minima, or points of inflection. Link: [https://drive.google.com/file/d/1RQ2OZk-LSxpRyejKEMg1t2q15dbpVLCS/view? usp=sharing] Present a step-by-step explanation. 5. Expand the Binomial Expression Go to page 10 of the linked file to find the binomial expansion problem. Use the binomial theorem to expand the given expression. Link: [https://drive.google.com/file/d/1RQ2OZK-LSxpRyejKEMg1t2q15dbpVLCS/view? usp=sharing] Show all steps involved in the expansion.