Thread: solving inequality

1. solve for x, xER using algebraic methods. Use a table to show your results.



Can someone please guide me on this one?

Hello,

Originally Posted by william

1. solve for x, xER using algebraic methods. Use a table to show your results.



Can someone please guide me on this one?

Factor
you can see that 1 is a root of this polynomial. Thus (x-1) is a factor of the polynomial.

solve for a,b in

you'll get two roots, p and q :

(p=-1 and q=2)

then make a table, like they said :
between - infinity and -1, (x-1)<0, (x+1)<0, (x-2)<0, so the polynomial is...
between -1 and 1, ...
between 1 and 2, ...
between 2 and infinity, ...

if you have no idea on how to do this, just say it here, but please try to think about it