Simplify the expression:

Question

(3x^2-8x^3+4x)-(9x^2-x^3+x)+4(6x-7)

Answer 1

(3x^2-8x^3+4x)-(9x^2-x^3+x)+4(6x-7)
3x^2-8x^3+4x -9x^2 + x^3 - x + 24x - 28
-7x^3 - 6x^2 + 27x - 28