Answer:
Expressions are not equivalent
Explanation:
Given expressions are:

Putting w=1 in both expressions
![4(3w+4)\\=4[3(1)+4]\\=4(3+4)\\=4(7)\\=28\\\\16w+12\\=16(1)+12\\=16+12\\=28](https://img.qammunity.org/2020/formulas/mathematics/middle-school/9313wtpmqw736284ggf2gkeakt0uzpws01.png)
Both expression have value 28 on w=1
Putting w=3 in both expressions
![4(3w+4)\\=4[3(3)+4]\\=4(9+4)\\=4(13)\\=52\\\\16w+12\\=16(3)+12\\=48+12\\=60](https://img.qammunity.org/2020/formulas/mathematics/middle-school/8tcz6hv9vs6ojkfy0v3k2zrbbp7mtjh67i.png)
Both expression have different values at w=3
Hence, in order for the expressions to be equivalent they both should produce same value on w=3 too.
So, it can be concluded that both expressions are not equivalent ..