Question

4 input a minus b whole square minus c minus d whole square​

Answer 1

4 input a minus b whole square minus c minus d whole square are

1. a^2 + b^2 - 2ab + c^2 + d^2 -2cd
2. ( a+ b ) ^2 - 4ab + (c + d )^2 -4 cd
3. 2( a + b )^2 -a^2 b^2-4ab - 2 ( c+d ) ^2 - c^2 -d^2 - 4cd
4. 3 (a + b )^2 -a^2 b^2-5ab - 2 ( c+d ) ^2 - c^2 -d^2 - 5cd