Factor
4y-20

! if you can could you give a way to remember this? you so so much!

4y - 20u need to find a common factor that can go into 4y and 20the only common factor is 4. So u can factor that out4 goes into 4 one time (but do not forget the y) and 4 goes into 20 five times4(y - 5)

4(y - 5)...u can also check ur answer by distributing the 4 through the parenthesis and getting 4 * y - 4 * 5 = 4y - 20