Question

Three sides of a triangle are 2x+3x+1, x +7, and 3x²–2x+3. What is its perimeter? ​

Answer 1

Answer:

3x^2 + 4x+11

Step-by-step explanation:

2x+3x+x-2x +1+7+3 +3x^2

6x-2x +11 +3x^2

4x + 11 +3x^2

Answer 2

Answer:

3x² + 4x +11

Step-by-step explanation:

sides of triangle are 5x+1, x+7, 3x²-2x+3

perimeter of triangle = addition of all sides.

= 5x+1+x+7+3x²-2x+3

= 3x²+4x +11

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