IDNLearn.com is the perfect place to get detailed and accurate answers to your questions. Ask anything and receive thorough, reliable answers from our community of experienced professionals.
Answer: [tex]\mathrm{Domain\:of\:}\:-x^4+x^2-x-4\::\quad \begin{bmatrix}\mathrm{Solution:}\:&\:-\infty \:<x<\infty \\ \:\mathrm{Interval\:Notation:}&\:\left(-\infty \:,\:\infty \:\right)\end{bmatrix}[/tex]
[tex]\mathrm{Range\:of\:}-x^4+x^2-x-4:\quad \begin{bmatrix}\mathrm{Solution:}\:&\:f\left(x\right)\le \:-2.94521\dots \:\\ \:\mathrm{Interval\:Notation:}&\:(-\infty \:,\:-2.94521\dots ]\end{bmatrix}[/tex]