What value(s) of x make the equation x2 - 18x + 81 = 0 true?
a) 9
b) -9, 9
c) 0, 9
d) 0, -9, 9

What are the values of , , m∠abd and m∠dbe in the given figure? explain or show your work

Me #1 using vocabulary words, including the word “congruent”, state why the measure of angle d is 120 degrees. #2 what is the measure of angle e and why?

Which expression is not a polynomial?