CD+3 letters =HI
HI +3 letters=MN
MN +3 letters=RS
RS + 3 letters=??
If you don't understand that....
Look at this: CD efg HI jkl MN opq RS ... ??
123 123 123
Hope I helped you and that you understand this explanation
Area = 18x^2 + 69x + 60
Width = 3x + 4
Length = (18x^2 + 69x + 60) ÷ (3x + 4)
Length = 3(3x + 4)(2x + 5) ÷ (3x + 4)
Length = 3(2x+5)