{"id":1,"slug":"abivalemid","title":"Korrutamise abivalemid","description":"Õpi ja harjuta kolme abivalemit: summa ruut, vahe ruut ja ruutude vahe.","competencies":[{"id":1,"topicId":1,"name":"Summa ruut","description":"(a + b)² = a² + 2ab + b²"},{"id":2,"topicId":1,"name":"Vahe ruut","description":"(a - b)² = a² - 2ab + b²"},{"id":3,"topicId":1,"name":"Ruutude vahe","description":"a² - b² = (a + b)(a - b)"}]}