Question

tìm x 45^x .45¹²³ = 45¹²⁶

Answer 1

45^x . 45¹²³ = 45¹²⁶

45^x+123 = 45¹²⁶

x + 123 = 126

x = 126-123

x = 3

Vậy x=3

Answer 2

\(45^x.45^{123}=45^{126}\)

\(45^x=45^{126}:45^{123}\)

\(45^x=45^{126-123}\)

\(45^x=45^3\)

\(\Rightarrow x=3\)

Vậy x=3

Answer 3

\(45^x\cdot15^{123}=45^{126}\)

\(\Rightarrow45^{x+123}=45^{126}\)

\(\Rightarrow x+123=126\)

\(\Rightarrow x=126-123\)

\(\Rightarrow x=3\)

Vậy \(x=3\).

Answer 4

45^x.45¹²³=45¹²⁶

45^x+123 =45¹²⁶

=> x+123=126

=>x =126-123

=>x = 3

Cho mình 1 tick nha , chúc bạn học tốt

Answer 5

45^x.45¹²³=45¹²⁶

45^x=45¹²⁶:45¹²³

45⁵=45³

\(\Leftrightarrow\)x=3

Answer 6

\(45^x.45^{123}=45^{126}\)

\(45^x=45^{126}:45^{123}\)

\(45^x=45^3\)

\(x=3\)