He was root pruning in the garden.

In Buddhism, the nose represents the ability to smell.

The rhizosphere plays a very important role in plant growth.

What he's saying is a baseless story.

He loves sports spirit anime and looks forward to new episodes every week.

His story is a mix of truth and fiction, and I don't know what's true.

Solving a linear equation is difficult.

Solving a quadratic equation is difficult.

He worked all night to find the solution to the partial differential equation.

I am learning how to solve ordinary differential equations.