Question

me ajudem é urgente

Answer 1

${2}^{2} - ( \frac{3}{2} ) ^{2} = \\ = 4 - \frac{9}{4} \\ = \frac{4}{ 1} - \frac{9}{4} \\ = \frac{4 \div 1 \times 4}{4} - \frac{4 \div 4 \times 9}{4} \\ = \frac{16}{4} - \frac{9}{4} = \frac{7}{4}$