Which expression is equivalent to 5a+20? A: 5 (5a+4). B: 5 (a+4). C: 5 (a+20). D: 5 (a+1)

5 (a+4)

Step-by-step explanation:

expression is equivalent to 5a+20

To get the equivalent expression we need to factor the given expression

5a + 20

5a can be written as 5 * a

20 can be written as 5*2*2

WE can see that common factor is 5 for both 5a and 20

So GCF is 5

Now we factor out GCF 5

WE put 5 outside and write all the left of factors inside the parenthesis

5a + 20

5 (a+2*2)

5 (a+4)