minta tolong yaa. terima kasih

Saya gak pakai LaTex, ya.

1/2 + (3log8)(2log3 + 4log5) - 4.9log45
= 3log3^(1/2) + (3log8)(2log3 + (1/2).2log5) - (4/2).3log45
= 3log3^(1/2) + (3log2^3)(2log3 + 2log5^(1/2)) - 2.3log(3^2.5)
= 3log3^(1/2) + (3.3log2)(2log(3.5^(1/2))) - 3log(3^4.5^2)
= 3log3^(1/2) + 3.3log(3.5^(1/2)) - 3log(3^4.5^2)
= 3log3^(1/2) + 3log(3^3.5^(3/2)) - 3log(3^4.5^2)
= 3log(3^(1/2 + 3 - 4).5^(3/2 - 2))
= 3log(3^(-1/2).5^(-1/2))
= 3log(3.5)^(-1/2)
= -(1/2).3log(15)
= - 9log15