Question

como resolver :
( x + $\frac{3y}{2}$ )² = ?

Answer 1

$(x+\frac{3y}{2})^{2} \\ \\ (x+\frac{3y}{2}).(x+\frac{3y}{2}) \\ \\ x.x+x.\frac{3y}{2} + \frac{3y}{2}.x + \frac{3y}{2}.\frac{3y}{2} \\ \\ x^{2} +2.\frac{3xy}{2}+\frac{9 y^{2} }{4} \\ \\ x^{2} +3xy+\frac{9 y^{2} }{4}$