I am assuming x2 is , if I am wrong about that then please notify me in the comments
[END NOTE]
The parenthesis are implications that we multiply the numbers within them.
Therefore, multiply.
(2x)(x2)
(2x)(x)
(2x)(-2)
-4x
(3)(x2)
(3)(x)
3x
(3)(-2)
-6
Now combine like terms, meaning the numbers with the same endings, you cannot add a number with different exponents and adding numbers with and without a variable.