Answer:
This factors out to be
4(2x+5)(2x+5)
GCF is 4.
This equals 4x^2 +20x+25
=2
=10
Therefore these will be the boxes:
Blank 1: 4
Blank 2: 2
Blank 3: 10
Something that can help you with these types of problems is the "Factoring Calculator by MathPapa" Which I will not put here but can be found by searching that on an engine.