Question

what should be subtracted from the polynomial x⁴+ 2 x ³ + X ² - 18 x- 15 so that the resulting polynomial is exactly divisible by x² - 1 - x​

Answer 1

Answer:

please make me branliest for solving your problem the sum should be subtracted by 10x+10

Step-by-step explanation:

x²+3x+5

______________

x²-x-1. | x⁴+2x³+x²-18x-15

-x⁴+1x³+x²

________________

3x³+2x²-18x

-3x³+3x²+3x

_________________

5x²-15x-15

-5x²+5x+5

_______________

-10x-10