College Algebra Section R.6 How is 30 done? [ATTACH=full]2687[/ATTACH]
x^4+(3-h)x^3 -2hx^2-2h^2x+h^3 by x-h x-h=0 => x=h h^4+(3-h)h^3 -2h*h^2-2h^2*h+h^3=0 -> true so, (x-h) is a factor
Thank you. I see that we have a new "daily" member: Albert. Hopefully, the site will begin to attract more tutors and math specialists.