WEBVTT
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Write in the simplest form an expression that represents the perimeter of the given triangle.
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The three lengths of the triangle are five 𝑥, five 𝑥 plus eight, and six 𝑥 minus two.
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In order to calculate the perimeter of any shape, we add the lengths of the sides.
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In this case we need to add five 𝑥, five 𝑥 plus eight, and six 𝑥 minus two.
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Our next step is to group the like terms, firstly all those 𝑥 terms: five 𝑥 another five 𝑥, and the six 𝑥.
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Secondly, we need to group the numbers positive eight and negative two.
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Five 𝑥 plus five 𝑥 plus six 𝑥 is 16𝑥 as five plus five plus six equals 16.
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Grouping the positive eight and negative two gives us positive six as eight minus two equals six.
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Therefore, the expression for the perimeter of the triangle in its simplest form is 16𝑥 plus six.
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This method can be used to find an expression for the perimeter for any shape.