Question

Преобразуйте вырожение в многочлен a) (5a+1)²
b)(10-4c)²

Answer 1

a)(5a+1)²=(5a+1)(5a+1)=25a²+10a+1
b)(10-4c)²=(10-4c)(10-4c)=100-80c+16c²

( x+y)²=x²+2xy+y², (x-y)²=x²-2xy+y² )