12. Determine if the statement is always true, sometimes true, or never true. Explain your reasoning. \" (x) 2 0 if f (x) is an even degree polynomial \" 14. Determine when x' + 7x+ 25 2-x - 10x - 10. Use a factor table and answer in interval notation15. Liam is designing a box to store all his medals. To make the box, he's going to start with a piece of cardboard in the shape of a rectangle and cut squares with sides x cm in length from each comer. The dimensions of the piece of cardboard are 30 cm by 30 cm. If Liam wants the volume of the box to be 1000 cm3, what are the possible dimensions of the box? Trial and error solutions will receive no credit