Math, asked by aastha2203, 1 year ago

if 25^x-1 = 5^2x-1 - 100. find x. (^= raise to.)

Attachments:

Answers

Answered by kurnal1
19
this is the answer
hope it helps
Attachments:
Answered by eashani1306
0

Answer:

Step-by-step explanation:

  25^x-1 = 5^(2x-1) - 100

⇒ 5^2x-2 = 5^(2x-1) - 100

⇒ 5^2x-2 - 5^2x-1 = -100

⇒ 5^2x [ 5^-2 - 5^-1] = - 100

⇒ 5^2x [ 1  -  1 ]  = - 100

            25    5

⇒ 5^2x [ 1 - 5]  = - 100

              25

⇒ 5^2x [ -4 ] = - 100

             25

⇒ 5^2x [-4] = -100 * 25

⇒ 5^2x = 100 * 25     [ - * - = +]

                 4  

⇒ 5^2x = 625

⇒ 5^2x  = 5^4  

so, ⇒  2x = 4

     ⇒  x = 2

hope it helps you

Similar questions