Question

the perimeter of a triangle is 5 x2 + 3x -1 and two of its sides are 2x - 5 + 7 x2 and 3 x2 +4 - 2 x3 + x . find the third side of the triangle.

Answer 1

Answer:

Step-by-step explanation:

Perimeter of triangle = 5*2+3x-1

Side +side +side =10+3x-1

2x-5+7*2+3*2+4-2*3+x=10+3x-1

2x-5+14+6+6+x=10+3x-1

3x+21=10+3x-1

by transposing,

3x-3x=9-21

X= -12