You can
put this solution on YOUR website!To solve this remember the rules of the distibutive property: each term inside the parentheses MUST be multiplied by the term outside the parentheses.
Therefore 4a(3x+5) --> 4a * 3x + 4a * 5
Then remember that you cannot mix the variables --> 4*3*a*x + 4*5*a -->
12ax + 20a