Respuesta :
1. Given (12+3)x, we can sum the numbers in the parenthesis to get 15x
2. Given 12x+3x, we can factor x to get (12+3)x and get the same as 1.
3. Given (12+3x)x, we have to distribute the x and we have [tex]12x+3x^2[/tex]
4. This expression is already simplified.
(12+3x)x
Step-by-step explanation:
(12+3)x = 15x
12x+3x = 15x
15x= 15x
(12+3x)x = 12x+3x^2
