<PRE><B>Question 1133205</B>


{{{16x^2 + 40x + 25}}}

{{{ 16x^2 + 20x+20x + 25}}}

{{{(16x^2 + 20x)+(20x + 25)}}}

{{{4x(4x + 4)+5(4x + 5)}}}

{{{(4 x + 5)(4 x + 5)}}}

</PRE>