Question

-x^3-5x^2+18;8x^3-2x^2+20; -4x^3+4x^2+4x^2-10
add the following​

Answer 1

Answer:

3x³ -3x² 28

Step-by-step explanation:

{ -x³-5x²+18} + { 8x³- 2x² +20} + { -4x³+4x²-10}

=> (-x³)+8x³-4x³ + (-5x² - 2x² +4x²) + 18+20-10

=> 3x³ -3x² 28