Multiply each term in the parenthesis by 3
3x+3*5
Then multiply the numbers
3x+15
3(x+5)
We can use the distributive property to mulitply both x and 5 by 3 to get
3x+15
*And why is this post labeled off-topic? It is relevant to the forum and also, please put mroe effort in naming your question "sdagsw" is not a good name for it.
To solve this problem, do this...
3(x+5) Multiply 3 by the x and 5 respectively.
That would be 3x+15.
~~Hypotenuisance