Help anyone and explain please

For this question, the left hand side must be equal to the right hand side. Simply expand to get the answer, which is D.
[tex]4 {y}^{2} + 2 = 4(y \times y) + 2 \\ 4 {y}^{2} + 2 = 4( {y}^{2} ) + 2 \\ lhs = rhs[/tex]
Hope this helps!