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The area of a rectangle room is given by the equation x^2+x=12, where w is thewidth if the room. What is the width of the room?

Respuesta :

clarch19

Answer:

w = 3

Step-by-step explanation:

factoring x² + x - 12 you get (x + 4)(x - 3) = 0

x = -4 and x = 3

since you cannot have a negative width, we exclude that value and use the positive value of 3

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