Ответы
Ответ дал:
2
ответ (a-b+7)*(k-18)
ак-18а-bk+7k+18b-126=0
ak+bk-7k=18a-18b+126
k(a+b-7)=18(a-b+7(
k-18=(a-b-7)
потому что +- ---> - и -+ ---> -
спасибо
Вас заинтересует
2 года назад
2 года назад
2 года назад
2 года назад
8 лет назад
8 лет назад
9 лет назад
9 лет назад
1. Water and air are becoming more polluted. 2. At present computers are more widely used in the sphere of education. 3. Where were you at six o'clock? We were studying in the reading-room. 4. There are government and public organizations that are analysing data on land, forest and air.