Question

(/ = риска дробу) 39²-33²/24²-12²

Answer 1

$\dfrac{39 {}^{2} - 33 {}^{2} }{24 {}^{2} - 12 {}^{2} }$

$\dfrac{(39 - 33) \cdot (39 + 33)}{(24 - 12) \cdot (24 + 12)}$

$\dfrac{6 \cdot 72}{12 \cdot 36}$

$\dfrac{432}{12 \cdot 36}$

Сократить 432 и 12

$\dfrac{36}{36}$

Ответ: 1