Question

What are the domain restrictions of the expression h²+3h−10h²−12h+20 ?

Answer 1

There are no restrictions in the Domain of this expression.

1) Simplifying that expression

`\begin{gathered} y=h^2+3h-10h^2-12h+20 \\ \end{gathered}`

Combining like terms we have:

`f(h)=-9h^2-9h+20`

2) Since this function presents no undefinition, then we can state that any value within the Real set is valid for that. So the Domain of that function is:

D = (-∞, ∞) or simply put D = R