Найдите разность многочленов:
\(\displaystyle \left(101x^{\,3}+12x^{\,2}-6x-90\right)-\left(20x^{\,3}-34x^{\,2}+15x-16\right)=\)
\(\displaystyle =\)[?||-][ ]\(\displaystyle x^{\,3}\)[?|+|-][ ]\(\displaystyle x^{\,2}\)[?|+|-][ ]\(\displaystyle x\)[?|+|-][ ]