<function-of-x>
<term><coeff>1</coeff><x/><power>3</power></term>
<term><coeff>2</coeff><x/><power>2</power></term>
<term><coeff>3</coeff><x/><power>1</power></term>
<term><coeff>4</coeff><x/><power>0</power></term>
</function-of-x>
