Question 209159
Each side of a regular octagon measure x +3 cm. write a simplified expresion to represent the perimeter of this figure. 

I tried (x+3)x8 but my teacher told me to simplify that
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It is x+3 times 8, or 8x + 24.
Be careful using x for multiply when x is also the variable.

Use (x+3)*8 instead.