Special Products 1

= \({\left(A+B\right)}^{2}\) , where \(A=2x\) and \(B={y}^{2}\)

= \(A^2+2AB+B^2\)

= \({\left(2x\right)}^{2}+2\left(2x\right)\left({y}^{2}\right)+{\left({y}^{2}\right)}^{2}\)

= \(4{x}^{2}+4x{y}^{2}+{y}^{4}\)