math
posted by vishal on .
Factor completely and then place the factors in the proper location on the grid.
4n2 + 28n + 49

Recognize the perfect square form, a^2+2ab+b^2 = (a + b)^2
4n^2 + 28n + 49
(2n + 7)^2 
In google type :
wolfram alpha
When you see list of results click on:
Wolfram Alpha: Computation Knowledge Engine
When page be open in rectangle type:
4n^2+28n+49
and click option =