Question

the sides of a triangle are x square + 20,2x square+6x+7, 5x square - 4x +15. What is its perimeter​

Answer 1

Answer:

(8x^2 + 2x + 42) units.

Step-by-step explanation:

perimeter of triangle = side1 + side2 + side3

$= ( {x}^{2} + 20) + (2 {x}^{2} + 6x + 7) + (5 {x}^{2} - 4x + 15) \\ after \: solving \: \\ = 8 {x}^{2} + 2x + 42$