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04-05-2016
Mathematics

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the length of a garden is 4 m longer than the width. if the area of the garden is 196m^2, find the width of the garden.

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Аноним Аноним

12-05-2016

l = 4 + w
w = w
A = 196 m^2

A = lw
A= (4+w)w
196 = w^2 +4w

w^2 + 4w - 196 = 0

The quadratic roots (or zeros) of the function are 12 and -16.

Since -16 does not make sense as a measure of width, then 12 is the answer.

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