The lengths of two sides of a triangle are shown below:

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?

Part B: What is the length of the third side of the triangle?

Part C: Do the answers for part a and b show that the polynomials are closed under addition and subtraction? Justify your answer.

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step-by-step explanation:

jml angle lkj & angle mj = lm

step-by-step explanation:

( - 4 , -7 )

all the lines must parallel  

step-by-step explanation:

coordinates of c = ( - 1 , 2 )

3 units left = ( -4 , 2 )

9 units down = ( - 4 , 11 )