Question

2. [1 балл] Вычислите 53²-26²*53+13^2​

Answer 1

$53 {}^{2} - 26 {}^{2} \times 53 + 13 {}^{2} \\ 2809 - 53 - {26}^{2} + 169 \\ 2978 - 53 \times 676 \\ 2978 - 35828 \\ - 32850$