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A rectangular room has a Length 5x-3 and a width of 2x+7 if we want to carpet the room, how much do we we need to purchase (area) we want to add a border for the room, how much border would I need to buy? (Perimeter)

Respuesta :

Answer:

Area: 10x^2 +29x - 21

Perimeter: 14x - 27

Step-by-step explanation:

Area:

multiply (5x-3) by (2x+7) using FOIL

10x^2+35x-6x-21 = 10x^2+29x-21

Perimeter:

add (5x-3) + (5x-3) +(2x+7) + (2x+7)

10x-6+4x-21 = 14x-27

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