There are 3 more dots above the 13 than are above the 12, so the appropriate choice is ...
... A. 3
I think the answer is both x and y are positive
ßœ446 d8 kœ ælæm æng ßægœ5
combining like terms in a polynomial is adding or subtracting together terms that have the same degree in the exponents.
example. 3x^3 + 5x^6 + 2x^3 +7x + 9x^6
= 7x + 5x^3 + 14x^6
6x-2y+5. Here you just do addition/subtraction with the coefficients on the variables.
