SOLUTION: the length of a room exceeds its breath by 8dm. If each had been increased by 2dm the area would have been increased by by 60 square dm. Find the dimension

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Question 1054994: the length of a room exceeds its breath by 8dm. If each had been increased by 2dm the area would have been increased by by 60 square dm. Find the dimension
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
(w+2)(w+10) - (w+8)w = 60
w^2 + 12w + 20 - w^2 - 8w = 60
4w + 20 = 60
4w = 40
w = 10m, L = 18m 10%2B+8
checking
(w+2)(w+10) - (w+8)w = 60 ng:
12m*20m - 18m*10m = 60m^2 CHECKS!