The lengths of two sides of a triangle are shown.

Side 1: 3x² − 4x − 1

Side 2: 4x − x² + 5

The perimeter of the triangle is 5x³ − 2x² + 3x − 8.

Part A: What is the total length of the two sides, 1 and 2, of the triangle? Show your work
Part B: What is the length of the third side of the triangle? Show your work.
Part C: Do the answers for Part A and Part B show that the polynomials are closed under addition and subtraction? Justify your answer.

Answer rating: 100% (QA)

Part A To find the total length of the two sides add them together Side 1 3x2 4x 1 Side 2 4x x2 5 Ad... View the full answer