Respuesta :

5x + 50 +x
= 5x*2( square ) + 50
Question: 5(x+10)+x
1st step - multiply 5 with everything in the parenthesis.
after multiplying everything in the parenthesis with 5 the answer will be - 5x+50+x.
2nd step - add like terms.  
3rd - the answer will be 6x+50. 
Hope it helps :)