Hello i was wondering if anyone could me understand this one i plugged it in a calculator but don't know the next step. graph the function y = x^3+3x^2-1 . based on the graph, what is the least possible x-value if y = 0? round your answer to the nearest hundredth, if necessary.

The two cylinders are similar. if the ratio of their surface areas is 9/1.44 find the volume of each cylinder. round your answer to the nearest hundredth. a. small cylinder: 152.00 m3 large cylinder: 950.02 m3 b. small cylinder: 972.14 m3 large cylinder: 12,924.24 m3 c. small cylinder: 851.22 m3 large cylinder: 13,300.25 m3 d. small cylinder: 682.95 m3 large cylinder: 13,539.68 m3