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Tasha is planning an expansion of a square flower garden in a city park. If each side of the original garden is increased by 7 m, the new total area of the garden will be 144 m². Find the length of each side of the original garden.
A) 19 m
B) 12 m
C) 5 m
D) √5 m

Respuesta :

HomertheGenius
x - the length of each side of the original garden
A = x²
( x + 7 )² = 144  /√
x + 7 = 12,  or  x + 7 = - 12;
x = 12 - 7
x = 5  ( another solution in negative )
Answer:
C ) 5 m
 

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