Question

simplify 4x^6-8x^3+18=0

Answer 1

any common factors?

Answer 2

?? "Simplify", or "Solve"?

To Solve, it may be important to notice that it is QUADRATIC. No, really!

\(x^{3} = \dfrac{-b\pm\sqrt{b^{2} - 4ac}}{2a}\)

If it really is "simplify", listen to aacehm! Find those common factors.

Answer 3

@tkhunny is right, if you set u = x^3, then it turns into a quadratic
\[4u^{2}-8u+18\]