Answer :
(8x^2 - 3x^3) - (2x^2 - 5x^3)
= 8x^2 - 3x^3 - 2x^2 + 5x^3.
= 8x^2 - 2x^2 + 5x^3 - 3x^3. Simplify together like terms.
= 6x^2 + 2x^3
= 8x^2 - 3x^3 - 2x^2 + 5x^3.
= 8x^2 - 2x^2 + 5x^3 - 3x^3. Simplify together like terms.
= 6x^2 + 2x^3