Question

Помогите плз
плз
плз
плз​

Answer 1

${12}^{2} = 12 \times 12 = 144 \\ (0.4 {)}^{2} = 0.4 \times 0.4 = 0.16 \\ (3.5 {)}^{2} = 3.5 \times 3.5 = 12.25 \\( 0.05 {)}^{2} = 0.05 \times 0.05 = 0.0025 \\ {( \frac{6}{7} )}^{2} = \frac{ {6}^{2} }{ {7}^{2} } = \frac{6 \times 6}{7 \times 7} = \frac{36}{49} \\ {(2 \frac{1}{3}) }^{2} = {( \frac{7}{3} )}^{2} = \frac{ {7}^{2} }{ {3}^{2} } = \frac{7 \times 7}{3 \times 3} = \frac{49}{9} = 5 \frac{4}{9}$