4ab+2(a-b)в квадрате

Question

4ab+2(a-b)в квадрате

Answer 1

4ab+2(a-b)^2=4ab+2(a^2-2ab+b^2)=4ab+2a^2-4ab+2b^2=2a^2+2b^2
^2-это квадрат

Answer 2

4ab+2(a-b)²=
4ab+2(a²-2ab+b²)=
4ab+2a²-4ab+2b²=
2a²+2b²