The lengths of two sides of a triangle are shown. Side 1: 8x2 - 5x-2
Side 2: 7x - X2+3
The perimeter of the triangle is 4x3 - 3x2 + 2x - 6.
Part A: What is the total length of the two sides, 1 and 2, of the triangle? Show your work. (4 points)
Part B: What is the length of the third side of the triangle? Show your work. (4 points)
Part C: Do the answers for Part A and Part B show that the polynomials are closed under addition and subtraction? Justify your answer. (2 points)
KA

answer: ask

step-by-step explanation:

addition

step-by-step explanation:

step-by-step explanation:

what are the statements? and what do you mean by "216 2 1 6"?

, and

for

step-by-step explanation:

we can analyze the pattern at which the terms increase. let us denote , , , so that we can call

note the following:

the pattern: to get the next term value, we just add the next term number (e.g. 1st, 2nd, to the previous term value (term values are the given numbers in the question, 1, 3, 6, 10, 15,

from , to get to , we add

from , to get to , we add

etc.

we need to form a recursive formula, a formula that has the next term as a function of the previous term. so a possible recursive formula can be

, and for