Question

what should be added to 4x^3+5x^2-9 to get 4x^3-9x^2+25 ?​

Answer 1

Answer:

The answer is $A= -14x^{2} +34$

Step-by-step explanation:

Given

 what  should be added to $4x^{3} + 5x^{2} -9$  to get $4x^{3} -9x^{2} + 25$

let assume that A is the require equation

       $4x^{3} + 5x^{2} -9 +A = 4x^{3} - 9x^{2} +25$

      $A= 4x^{3} -9x^{2} + 25- 4x^{3} -5x^{2} +9$

      $A= - 14x^{2} +34$