Answer:
-4x^2 + 3x +1 & it would be C. quadratic trinomial
Step-by-step explanation:
1: Remove the parenthesis. Switch the -1 to a +1.
8x^2 + 3x - 12x^2+1
2: Simply the equation.
8x^2 + 3x - 12x^2+1
(2a. Group like terms)
= 8x^2 -12x^2+3x+1
(2b. Add the similar elements)
= -4x^2 + 3x + 1
So you would minus 12x^2 and 8x^2 to get 4x^2!
