Question

PLEASE HELP!!!!!!!!!!!!!

Answer 1

$4y^2+2=(4y\cdot4y)+2\\ 4y^2+2=16y^2+2 \leftarrow \text{not identity}\\\\ 4y^2+2=(4y+y)+2\\ 4y^2+2=5y+2 \leftarrow \text{not identity}\\\\ 4y^2+2=4(y+y)+2\\ 4y^2+2=8y+2 \leftarrow \text{not identity}\\\\ 4y^2+2=4(y\cdot y)+2\\ 4y^2+2=4y^2+2 \leftarrow \text{identity}$

So it's D.