Question

Add. (2x^2+4−x^3)+(−4x^2+6x^3−2) Express the answer in standard form. Enter your answer in the box.

Answer 1

Answer:

$5x^3+8x^2+2$

Step-by-step explanation:

$(2x^2+4-x^3)+(-4x^2+6x^3-2)=\\2x^2+4-x^3+4x^2+6x^3-2=\\6x^3-x^3+2x^2+6x^2+4-2=\\5x^3+2x^2+6x^2+4-2=\\5x^3+8x^2+4-2=\\5x^3+8x^2+2$