This may be what you're looking for:
I think that if you use 2 and 3 I think you have to mutually understand the difference between 3 and 2
Answer:
1
Step-by-step explanation:
4-3=1 denominator never changes may i be marked brainliest?
Combine your like terms:
9x^2 + 3x^2 = 12x^2
3x + -5x = -2x
2 + -3 = -1
12x^2 - 2x - 1