Question

x²+y²+z²+3xyz and 3x²+2y²+4z²+12xyz

Answer 1

Answer:

please ask a valid question what to do with the question is not given

Answer 2

$({x}^{2} + {y}^{2} + {z}^{2} + 3xyz) + (3 {x}^{2} + 2 {y}^{2} + 4 {z}^{2} + 12xyz ) \\ = 4 {x}^{2} + 3 {y}^{2} + 4 {z}^{2} + 15xyz$