By adding 7-x-x2 and x3 +x2+x-4, we get:

User login

15 + 0 =
Solve this simple math problem and enter the result. E.g. for 1+3, enter 4.

By adding 7-x-x2 and x3 +x2+x-4, we get:

x3+3

x3+ x2+x-4

x2+3

x3+ 2x2+2x-11