Question

Regras dos produtos notaveis calcule C-(3X+2A/3)2

/=SOBRE

Answer 1

Vamos desenvolver :

$(3x+ \frac{2a}{3})^{2}\\\\\\(3x)^{2}+2.3x. \frac{2a}{3} +( \frac{2a}{3} )^{2}\\\\\\9x^{2}+ \frac{6x.2a}{3} + \frac{4a^{2}}{9} \\\\\\9x^{2}+ \frac{12ax}{3} + \frac{4a^{2}}{9} =\boxed{\boxed{\boxed{\boxed{\ 9x^{2}+4ax+ \frac{4a^{2}}{9}\ }}}}\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ ok$