Question

Q25. What must be added to 3x3 – 2x2 + 5x – 1 so that the sum may be
x3 – 2x2 + 4x – 1​

Answer 1

Answer:

3x3 – 2x2 + 5x – 1 + _______=x3 – 2x2 + 4x – 1

or______=3x3 – 2x2 + 5x – 1-x3 – 2x2 + 4x – 1

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

Therefore 2x^3 - 4x^2 +9x -2 is your Answer

Answer 2

Answer:−2x3−x−2

Step-by-step explanation:

3x3−2x2+5x+1)+B=(x3−2x2+4x−1)

B=(x3−2x2+4x−1)−(3x3−2x2+5x+1)

B=x3−3x3−2x2+2x2+4x−5x−1−1

B=−2x3−x−2