Which operation is NOT closed for polynomials?

A) - (x2 + 4x + 5) (8x2 + 3x + 4)

B) (7x2 + 2x + 3) + (3x2 - 5x + 4)

C) (x2 + 2x + 5) - (x2 - 2x + 9)

D) (x3 + 4x - 5) / (x5 - 2x + 2)

Why is school so terrible?

What is the value of (-3x-4) / 12y when x=0 and y=1

What is the recursive formula when given the explicit formula for the following geometric sequence

What is the difference between 3 fifths and2 tenths

Chad watched 1/3 of A movie in the morning and he watch some more at night by the end of the day he still had 1/4 of the movie left to watch how much did of the movie did Chad watch at night

Make d the subject of the formula a=cd

What is 5x-9=7x+6-2x

A regular pentagonal prism has a height of 12 in. and base edge length of 8 in. Identify its lateral area and surface area. L = 576 in2; S = 700.2 in2 L = 480 in2; S = 590.1 in2 L = 480 in2; S = 700.2 in2 L = 576 in2; S = 590.1 in2

An uncooked gingerbread cookie is y centimeters long. After it is baked, the length of the cookie increases by 25%. Which expression best represents the new length of the cookie? A. 0.25y B. 0.75y C. 1.25y D. 12.5y

Lin has 13 coins in her pocket that equal 40 cents. All the coins are dimes, d, and pennies, p. Which combination of coins does Lin have? Use the table to answer the question.