Suppose that $f$ is a polynomial such that\[(x^2-1)\cdot f(x)=5x^6-x^5+3x^4+x^3 - 25x^2 +38x -17.\]What is the degree of $f$?

your answer is 40

step-by-step explanation:

5x+40

5(x + 8)

7x - 49

7(x - 7)

18x + 9

9(2x + 1)

15x - 10

5(3x - 2)

step-by-step explanation:

for number one all you have to do is factor 5 out of 5x + 40

for number 2 factor 7 out of 7x - 49

for number three factor 9 out of 18x + 9

for number four factor 5 out of 15x - 10