<span><span><span><span><span><span><span><span>t</span><span>g</span></span></span><span>B</span><span>= </span><span><span><span><span><span><span><span><span><span><span>√</span></span></span></span></span></span><span><span>3/3 </span></span></span></span></span></span></span></span></span></span></span>= AC/AB
-0,3а(4а^2-3)(2а^2+5)=(-1,2а^3+0,9а)(2а^2+5)= -2,4а^5-4,2а^3+4,5а.
Ответ: -2,4а^5-4,2а^3+4,5а.( это многочлен)