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23-05-2016
Mathematics

contestada

A basketball court is in the shape of a rectangle. It has a length of (x − 7) meters and a width of (x + 3) meters. The expression below represents the area of the court in square meters:

(x − 7)(x + 3)

Which of the following simplified expressions represents the area of the basketball court in square meters?

− 6x + 3
x^2 − 21
x^2 − 4x − 21
x^2 − 7x + 3

Respuesta :

alliienn alliienn

02-06-2016

x^2 -3x+7x-21

so simplified is:

x^2 - 4x - 21

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