You need to memorize the formula and then use it in the exercise. لَازْمْ تَحْفِضْ الفُرْمُولْ وْ بَعْدِيكَا إِطَّبْقْهَا عَالإِقزِغْسِيسْ lazm ta7fidh lfourmouwl w ba3diyka 2iittab9ha 3al2ii9zighsiys
You need to memorize the formula and then use it in the exercise. لَازْمْ تَحْفِضْ الفُرْمُولْ وْ بَعْدِيكَا إِطَّبْقْهَا عَالإِقزِغْسِيسْ lazm ta7fidh lfourmouwl w ba3diyka 2iittab9ha 3al2ii9zighsiys