SOLUTION: The length of the garden is 5 cm longer than its width and the area is 36 square meter. How long is the garden?
i need the also the solution and also the first question that i s
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Question 891125: The length of the garden is 5 cm longer than its width and the area is 36 square meter. How long is the garden?
i need the also the solution and also the first question that i sent a while ago. Thank you :)
Answer by harpazo(655) (Show Source): You can put this solution on YOUR website!
length = x + 5
width = x
Area = 36
Use A = length times width
36 = (x+5)(x)
36 = x^2 + 5x
x^2 + 5x - 36 = 0
Factor left side.
(x + 9)(x - 4) = 0
Set each factor to zero and solve for x.
REJECT the negative answer since we are looking for length.
x + 9 = 0
x = -9...REJECT this x value.
x - 4 = 0
x = 4...ACCEPT this value of x.
The length is x + 5 or 4 + 5 = 9cm.
The garden is 9cm long.
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