Question

The perimeter of a triangle is 6 X square + 8 x and the measure of two sides is - 5 - 3 x + 5 x square and 9 + 3 + 12 x square what will be measure of the third side

Answer 1

Answer:

6x2+8x+5+3x-5x2-9-3-12x=perimeter-side1-side2=side 3=x2-x-7