A very simple arithmetic problem, -Factorization of square-4y + 4xy of X 2 (a + b) & sup2; + 20 (a + b) + 50 factorization

A very simple arithmetic problem, -Factorization of square-4y + 4xy of X 2 (a + b) & sup2; + 20 (a + b) + 50 factorization

1.=-(x-2y)^2
two
Let's put forward 2. Let's take a + B as a term and find the complete square formula
=2(a+b+5)^2