Question

find the sum of 5+x-x^2-x^3,3x-5+2x^2-x^3,x+5+2x^3-5x^2. in algebraic expressions.​

Answer 1

Answer:

-4x^2+5x+5

Step-by-step explanation:

(5+x-x^2-x^3)+(3x-5+2x^2-x^3)

(-2x^3+x^2+4x)+(x+5+2x^3-5x^2)

-4x^2+5x+5