A. For numbers 1-3, evaluate using the given values: x= 2, Y = 3, Z=-4 1. 3xyz 2. x² + y² + 2 Solution: Solution: 3. 2xy + 3yz - 5xz Solution: Answer: Answer: Answer: B. For numbers 4-6, evaluate using the given values: y = -3, h = 5, k = 4 4. xy - hk 5. 2x2 -3y2 + 4k - h Solution: Solution: (h+k)(x+y) 6. hkxy Solution: Answer: Answer: Answer: