Answer:
3x^2 - 8x - 1
Step-by-step explanation:
(2x^2-4x+3) + (x^2-4x-4)
First you take off the brackets:
2x^2-4x+3 + x^2-4x-4
Then combine the like terms:
2x^2 + x^2 = 3x^2
-4x - 4x = -8x
3 - 4 = -1
And finally write in Standard form (largest to smallest value):
3x^2 - 8x - 1
