6а-(4а-3)²=6a-(10a2-24+9)=6a-16a2+24a-9=-16a2=39a-9
ответ: г)-16а²+30а-9
6a-(4a-3)² = 6a-((4a)²-2*4a*3+3²)=6a-(16a²-24a+9)=6a-16a²+24a-9=-16a²+30a-9
6а-(4а-3)²=6a-(10a2-24+9)=6a-16a2+24a-9=-16a2=39a-9
ответ: г)-16а²+30а-9
6a-(4a-3)² = 6a-((4a)²-2*4a*3+3²)=6a-(16a²-24a+9)=6a-16a²+24a-9=-16a²+30a-9