Question

Alguém resolve pra mim please?????????????????

Answer 1

$\frac{1}{2} - ( \frac{3}{2} ) {}^{2} = \frac{1}{2} - \frac{9}{4} = \\ \frac{2}{4} - \frac{9}{4} = - \frac{7}{4} \\ - \frac{7}{4} \times (2 - \frac{2}{3}) = - \frac{7}{4} \times \frac{6 - 2}{3} = \\ - \frac{7}{4} \times \frac{4}{3} = - 7 \times \frac{1}{3} = - \frac{7}{3}$