Expression to represent the perimeter of a rectangle that has a length of 5x+85x+8 and a width of 10x+3

asked Oct 20, 2019 75.6k views

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The perimeter is the sum of the length and the width multiplied by two, like this:

$2((5x^2+85x+8)+(10x+3))=2(5x^2+95x+11)\\=10x^2+190x+22$

is the perimeter of the rectangle.

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