Question

Find the perimeter of a triangle if the three sides are
4x^2-x+4, 2x^2-2x+1, x^2+8x+3

Answer 1

7x^2+5x+8

Explanation:

Perimeter = sum of all sides

Perimeter = 4x^2-x+4+2x^2-2x+1+x^2+8x+3

= 7x^2+5x+8