\(12x-33=3^2.3^3\)
\(\Rightarrow12x-33=3^5\)
\(\Rightarrow12x-33=243\)
\(\Rightarrow12x=243+33\)
\(\Rightarrow12x=276\)
\(\Rightarrow x=276:12\)
\(\Rightarrow x=23\)
tíc mình nha
2, 27.75+25.27-150
=27.(75+25) - 150
=27.100 -15.10
=27.10.10 - 15.10
=10.(27.10 -15)
=10.(270-15)
=10.255
=2550
1, \(12x-33=\)\(^{3^2.3^3}\)
\(12x-33=9.27\)
\(12x-33=243\)
12x=243+33
12x=276
x=276 : 12
x=23