Which of the following shows that polynomials are closed under subtraction when polynomial 5x − 6 is subtracted from 3x^2 − 6x + 2?

Question

anonymous · Answer

Is somebody gonna answer my question?

anonymous · Answer

Nobody likes polynomials? wassup? I need help

ivettef365 · Answer

you have 3x^2-6x+2-(5x-6) which is the same as 

3x^2-6x+2-5x+6   now combine like terms

anonymous · Answer

your the best i bet everybody asks you for help huh?

anonymous · Answer

uh 3x+6x+5x = 14x and 6+2+2= 10

ivettef365 · Answer

3x^2 can not be combined because you do NOT have another number with x^2
now -6x-5x  can be combined because both have only ONE "X"
so you have -11x
and of course you can combine +2+6 = 8 both are just digits with no variables

so you have for answer   3x^2-11x+8

Do you understand how to combine like terms ???

anonymous · Answer

yea i get it now thank you again