<span>
= ∛(1000/64) = 10/4 = 2,5
</span>
= √(64/49) = 8/7 = 1
= √<span>(25/4) = 5/2 = 2,5
</span>
Решение тут с фотографией
18k²+7y-7ky-18k=18k(k-1)-7y(k-1) = (18k-7y)(k-1)
k=1/9, y=2/7
(18·1/9-7·2/7)(1/9-1)=(2-2)(1/9-1)=0
18k²+7-7ky-18k
18·1/9·1/9+7-7·2/7*1/9·-18·1/9=2/9+7-2-2=3_2/9