MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. Solve the problem. 1) A bookcase is to be constructed as shown in the figure below. The height of the bookcase is 4 feet longer than the length of a shelf. If 26 feet of lumber is available for the entire unit (including the shelves, but NOT the back of the bookcase), find the length and height of the unit. shelf length height A) length = 3 ft; height = 12 ft B) length = 11.0 ft; height = 13.5 ft C) length = 3 ft; height = 7 ft D) length = 4.5 ft; height = 8.5 ft Solve the equation by the zero-factor property. 2) x2 + 10x - 24 = 0 A) {-2, 12} B) {-12, 2} C) {-12, -2} D) {2, 12} Solve the equation by the square root property. 3) (3x + 7)2 = 36 A) $1 131 3 3 B) to Solve the equation by completing the square. 4) x2 + 10x =-16 A) {-2. -8} B) {-2, 8} C) {2, 8} D) {2, -8} Solve the equation using the quadratic formula. 5) 3x2 =-12x - 5 5) A) J-62 21 1 B) -12 t 21 3 c) L-62 21 D) -624 51