# What is the perimeter of a triangle with the following sides: (-5x^2+9x), (7x^2+7), (3x-5)?

Jul 28, 2016

$P = 2 {x}^{2} + 12 x + 2$

#### Explanation:

Perimeter is the sum of the sides of the triangle.

We will not get an actual numerical answer, but we will have an expression for the perimeter.

$P = - 5 {x}^{2} + 9 x + 7 {x}^{2} + 7 + 3 x - 5$

$P = 2 {x}^{2} + 12 x + 2$