Question

Solve the inequality 2x^4 -3x^3-7x^2+12x-4 is greater than or equal to 0. give answer in interval notation.

Answer 1

the factors are -1, 1/2, 1, 2
can you solve now?

Answer 2

I don't know what that means. Could you expand?

Answer 3

( x - 1 )( x - 1/2 )( x + 1)( x - 2 ) are the factors, can you solve further?

Answer 4

I can graph it, I don't know how to write the answer in interval notation though

Answer 5

\[ x \in ( -\infty, -1) U (\frac{ 1 }{ 2 },1) U(2 , \infty )\]

Answer 6

maybe
\[( x - 1 )(2 x - 1 )( x + 1)( x - 2 )\]

Answer 7

here all the brackets should be [] not () ;)

Answer 8

thank you

Answer 9

;)