Answer:
C. 2x^2 -2x+16 cm
Step-by-step explanation:
[tex]Length = x+5\\Width = x^2-2x+3\\\\Perimeter = 2(L+B)\\P = 2((x+5)+(x^2-2x+3))\\\\\mathrm{Remove\:parentheses}:\quad \left(a\right)=a\\P =2\left(x+5+x^2-2x+3\right)\\\\\mathrm{Simplify}\:x+5+x^2-2x+3:\quad x^2-x+8\\P = 2\left(x^2-x+8\right)\\\\P = 2x^2 -2x +16\:cm[/tex]
