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To calculate the perimeter of any rectangle, just use the basic definition of perimeter: in this case, you just add the lengths of the four sides.

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Q: What is the perimeter of a rectangle 3x2 3x 6 and x 7?
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How do you simplify -3x2 plus 16x plus 12?

-3x2 + 16x + 12 = -3x2 + 18x - 2x + 12 = -3x*(x - 6) - 2(x - 6) = -(3x + 2)*(x - 6)


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Area of rectangle: (3x-1)(x+6)