Mathematics, 19.06.2020 21:57, kyliefetters11

PLEASE HELP ILL MARK YOU BRAINLIEST 30 POINTS The lengths of two sides of a triangle are shown. Side 1: 3x2 − 2x − 1 Side 2: 9x + 2x2 − 3 The perimeter of the triangle is 5x3 + 4x2 − x − 3. 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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PLEASE HELP ILL MARK YOU BRAINLIEST 30 POINTS The lengths of two sides of a triangle are shown. Sid...