Đại số Ví dụ

$f (x) = - x^{7} + b x^{3} + c$

Bước 1

The function has more than one variable.

The leading coefficient test requires one variable only

$[\begin{array}{c} x^{2} & \frac{1}{2} \\ \sqrt{π} & \int x d x \end{array}]$