If it is not an integer, it would have to be a decimal.
Try to find out distinct shapes in the polygon and use their area formulas, then add up all of the shape's areas.
LW = 45
L + 2W = 19
L = 19-2W
substituting for L :-
W(19-2W) = 45
-2W^2 + 19W = 45
2W^2 - 19W + 45 = 0
W = 5 or 4.5
If W = 5, L = 9
If W = 4.5, L = 10
So there are 2 possible answers.
Answer:
-20x - 24
you just multiply the factor on the outside by each on the inside.
