Answer:
C
Step-by-step explanation:
Perimeter of a triangle is the sum of all the sides.
A triangle has 3 sides, so if we add up all the 3 sides lengths (given as expressions here) of the triangle, we will have the perimeter.
Perimeter = [tex](2x+3)+(8x-4)+(x^2)\\=2x+3+8x-4+x^2[/tex]
Now combining like terms we have:
[tex]2x+3+8x-4+x^2\\=x^2+10x-1[/tex]
Answer choice C is the correct one.
