Question

What must be subtracted from x⁴+2x²-3x +7 to get x³+x²+x-1?
please answer quick
And step by step explanation
please tomorrow is my exam
please send the answer quick​

Answer 1

Answer:

this is your answer

it is written in step by step

Answer 2

Given,

x^4+2x^2-3x+7- ? = x^3+x^2+x-1

To find ?:

x^4+2x^3-3x+7-x^3-x^2-x+1

=x^4-x^3+x^2-4x+8