Add the trinomials

x + y - 2 and x - y + 4

(1+1)x + (1-1)y + (-2+4)

2x + 2

Thanks

To add the trinomials:

Step 1: Group the like terms together. In this case, we have:
x + x = 2x (the x terms)
y - y = 0 (the y terms)
-2 + 4 = 2 (the constants)

Step 2: Combine the like terms to get the final expression:
2x + 0 + 2 = 2x + 2

Therefore, the sum of the trinomials x + y - 2 and x - y + 4 is 2x + 2.