Question

4. What should be added to x*4 + 2x*2 -7 to obtain 4x*4 -3x*3+X*2+2?​

Answer 1

Answer:

you have to add 3x^4 - 3x^3 - x^2 + 9

Answer 2

Answer:

3x⁴-3x³-x²+9

Step-by-step explanation:

=>4x⁴-3x³+x²+2-(x⁴+2x²-7)

=>3x⁴-3x³-x²+9