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

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