I need to explain/show work. Help please
I don’t understand this problem
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Answer:
Step-by-step explanation:
2x - (2x + 3)^2 + (4x -1) + x^3
2x - (4x^2 + 12x + 9) + (4x- 1) + x^3
x^3 - 4x^2 - 12x - 9 + 4x - 1
x^3 -4x^2 - 8x - 9 - 1
x^3 - 4x^2 - 8x - 10
A = 1
B = - 4
C = - 8
D = - 10