
Doug C. answered 12/14/22
Math Tutor with Reputation to make difficult concepts understandable
So do you see that each term of the expression 3x + 15 is divisible evenly by 3? This is called the greatest common monomial factor. The answer is 3(x+5). On of the factors is 3 and the other is the expression (x+5).
Here is another one:
Factor (8x - 24):
8(x-3)
Use the distributive property, i.e. multiply 8 times each term inside the parentheses to check your work.
8(x) - 8(3) = 8x - 24