Question

nao to comseguindo. qual e a resposta?

Answer 1

$(3ab-6b^2+5).(- \frac{5a}{3} )= \\ \\ (\not3ab\times- \frac{5a}{\not3} )-(\not6^2b^2\times- \frac{5a}{\not3} )+(5\times- \frac{5a}{3} )= \\ \\ (-5a^2b)-(-10ab^2)+(- \frac{25a}{3} )= \\ \\ -5a^2b+10ab^2- \frac{25a}{3}$