Perform the following operations and prove closure. Show your work. x x+3 + x+2 x+5 x+4 x2+5x+6 • x+3 x2−16 2 x2−9 − 3x x2−5x+6 x+4 x2−5x+6 ÷ x2−16 x+3 Compare and contrast division of integers to division of rational expressions.

where is the triangle?

the aswere is the one with all 8's and the second one is with the 10,8 and 6

step-by-step explanation:

-2x + 7 = 7

subtract 7 from both sides.

-2x = 0

divide both sides by -2.

x = 0

, 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