[tex](j+6i) {}^{2} = j {}^{2} + 12ji-36[/tex]
[tex](m+ \frac{2}{5} ) {}^{2} = m {}^{2} + \frac{4m}{5} + \frac{4}{25} [/tex]
[tex](2.2o-5.8v) {}^{2} = 4.84o {}^{2} - 25.52ov+33.64v {}^{2} [/tex]
espero que te ayude
