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18 December, 23:01

5. The sides of a triangle are represented by the expressions

2x2 + 4, 5x2 - 6x, and 8x + 3. What is the perimeter of the triangle?

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Answers (1)
  1. 19 December, 00:56
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    P = 7x^2 + 2x + 7

    Step-by-step explanation:

    The perimeter is the sum of the lengths of the three sides of the triangle:

    P = 2x^2 + 4 + 5x^2 - 6x + 8x + 3.

    Group and combine like terms:

    P = 2x^2 + 5x^2 + 4 + 3 - 6x + 8x, or:

    P = 7x^2 + 2x + 7
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