Answer:
25x
Step-by-step explanation:
(5x squared + 2x +1) + (x squared -4x + 2x)
(25x + 2x +1) + (x squared -4x + 2x)
(25x + 2x +1) + (2x -4x + 2x) )
(27x +1) + (-2x + 2x)
(27x + 1-1) + (-2x + 2x) -1
27x -x -1
26x -1
