Question

Преобразуйте в многочлен
a^2+(3a-b)^2

Answer 1

a^2+(3a-b)^2=a^2+9a^2-6ab+b^2=10a^2-6ab+b^2

Answer 2

а² +(3а-в)² = а² + (3а)² -2*3а*в+ в² = а² +9а²-6ав+в² = 10а²-6ав+в²