Question

The lengths of the two sides of a triangle are given by the expressions 2x^2 + 5x + 3 and 2x + 3.The perimeter of the triangle is 8x^2 + 9x + 2 . Find a polynomial expression that represents the length of the missing side.

Answer 1

Step-by-step explanation:

Sum of all sides = 8x²+9x+2

So third side= 8x²+9x+2 - (2x²+5x+3) - (2x+3)

= 8x²+9x+2- 2x²-5x-3 - 2x-3

= 6x²+ 2x-4 Ans.