X ^(2) + {x}^(2) + 8x + 4x = pls solve I couldn't finish this expression ​

Question

`x ^(2) + {x}^(2) + 8x + 4x =`
pls solve I couldn't finish this expression
​

Answer 1

2x^2 + 12x

(I think this is the answer, and if you want to simplify it, the simplified/factorised answer would be 2x(x+6)

Answer 2

Explanation:

`{x}^(2) + {x}^(2) + 8x + 4x = \\ 2 {x}^(2) + 12x`