Question

4,5^2-4,2^2/9,5^2-2*9,5*9,8+9,8^2

Answer 1

$\frac{ {4.5}^{2} - {4.2}^{2} }{ {9.5}^{2} - 2 \times 9.5 \times 9.8 + {9.8}^{2} } = \frac{20.25 - 17.64}{90.25 - 186.2 + 96.04} = \frac{2.61}{0.09} = \frac{2.61 \times 100}{0.09 \times 100} = \frac{261}{9} =29$

ответ: 29