Question

The perimeter of a triangle is
$5x + 3x -1 \: and \: two \: of \: its \: side \: are \: 2x - 5 + 7x ^{2} \: and \: 3x ^{2}+ 4 - 2x ^{3} + x$
All method​

Answer 1

Answer:

this

Step-by-step explanation:

this is so difficult to get the answer

Answer 2

Answer:

perimeter of a triangle is nothing but the sum of the all sides of the triangle

by adding the given expressions we get,

perimeter of the triangle=-2x³+10x²+11x-2

add like terms only