<span>0.15 (х-4)=9.9-0.3 (х-1) / домножаем на 10
</span><span>1.5 (х-4)=99-3 (х-1)
</span>1.5х-6=99-3х+3
4.5х=108
х=24
B^3 - (b^3 + 5^3) = b^3 - (b^3 + 125) =
= b^3 - b^3 - 125 = - 125
А. (m-9)(m+9)
б. (b-11c)(b+11c)
в. (13m-4n)(13m+4n)
г. (6m-kp)(6m+kp)