Mathematics, 23.09.2020 01:01 thomask34

The lengths of two sides of a triangle are shown. Side 1: 8x^2-5x-2

Side 2: 7x-x^2+3

The perimeter of the triangle is 4x^3-3x^2+2x-6

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.

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The lengths of two sides of a triangle are shown. Side 1: 8x^2-5x-2

Side 2: 7x-x^2+3