Question

solve this equality . express its interval notation.
(x - 3)(x2 + x + 1) > 0

Answer 1

but its an inequality.....

Answer 2

\[x^2+x+1>0\] for all x

Answer 3

so this is just the same as solving
\[x-3>0\] i.e.
\[x>3\]

Answer 4

is it negative or pos. enfinity?

Answer 5

x>3 means x can take all the values greater than 3 upto +infinity

Answer 6

thought so thankyou so much :D you really are a lifesafer