Question

What must be added to 4 - 3x + 9x2 to get 3 - 4x2- x3 ?

Answer 1

Step-by-step explanation:

let the number to be added be x

9x^2-3x+4 -(-x^3-4x^2+3)=x

9x^2-3x+4+x^3+4x^2-3 = x

x^3+13x^2-3x+1 = x

x^3+13x^2-3x+1 must be added to 4-3x+9x^2 to get 3-4x^2-x^3

_____√\____anushka❤