Question 64082
Factor the following trinomial:

16x^2 + 40xy + 25y^2

It helps to recognize a perfect square trinomials.
{{{a^2+2ab+b^2=(a+b)^2}}}
:
{{{16x^2+40xy+25y^2}}}
{{{(4x)^2+2(4x)(5y)+(5y)^2}}}  a=4x and b=5y
{{{(4x+5y)^2}}}
Happy Calculating!!!