Question

8+(3x-[4+(2x-5)(2x+4)]-3+x}

Answer 1

8+(3x- [4 + 4x^2 + 8x -10x - 20] - 3+x)
8+ (3x- [ 4x^2 -2x -16] -3 + x)
8+ ( 3x -4x^2 + 2x -16 -3 +x)
8+ ( -4x^2 + 6x - 19)
8 - 4x^2 + 6x -19
-4x^2 + 6x - 11