Simplify the answer. Type coefficient as integers or decimals.

(1.4x^3+4.8x^2-3.3x)-(-4.9x^3-4.3x^2+86)

(1.4^X3+4.8^X2-3.3X)-(-4.9^3-4.3^2+86

RULE FOR SUBTRACTION:change the sign
of number being subtracted and add.

(1.4X^3+4.8^2-3.3x)+(4.9X^3+4.3X^2-86=
6.3X^3+9.1X^2+3.3X-86.