Answer
Standard form : $3z^4+7.4z^2-1.3z$.
Degree : $4$.
Leading coefficient : $3$.
Type : trinomial.
Work Step by Step
The given polynomial is
$=-1.3z+3z^4+7.4z^2$
Standard form is $3z^4+7.4z^2-1.3z$.
The greatest exponent of $z$ is $4$, so the degree of the polynomial is $4$.
Leading coefficient is $3$.
There are three terms, so the type of the polynomial is trinomial.
