Math, asked by shubhangishinde8837, 10 months ago

25^x-1 =5^2x-1 -100


Answers

Answered by Anonymous
7

PLEASE REFER TO THE ATTACHMENT.........

Attachments:
Answered by Anonymous
38

\Large{\underline{\underline{\bf{Solution:-}}}}

we \: have \:  \\  \\→  {25}^{x - 1}  =  {5}^{2x - 1 }  - 100 \\  \\→  { ({5}^{2}) }^{x - 1}   =  {5}^{2x - 1 }  = 100 \\  \\ → {5}^{2x - 2}  -  {5}^{2x - 1}  =  - 100 \\  \\ → {5}^{2x - 2}  -  {5}^{2x - 2}  \times  {5}^{1}  =  - 100 \\  \\ → {5}^{2x - 2} (1 - 5) =  - 100 \\  \\  →{5}^{2x - 2}  \times  - 4 =  - 100 \\  \\→  {5}^{2x - 2}   = 25 \\  \\  →{5}^{2x - 2}  =  {5}^{2}  \\  \\ →2x - 2 = 2 \\  \\ →2x = 2 + 2 \\  \\ →2x = 4 \\  \\→ x =  \frac{4}{2}  \\  \\ →x = 2

\Large{\underline{\underline{\bf{Thanks}}}}

Similar questions