plz solve this. 5^x-3 *3^2x-8 =225
Answers
Answered by
27
5x-3. 32x-8 = 225
= 75 x 3
= 25 x 3 x 3
= 5 × 5 x 3 x 3
= 5^2 × 3^2
If you compare both sides, then we get two equations
as below.
x − 3 = 2
2x – 8 = 2
You can solve any of them to get the value of x.
2x = 2 + 8 = 10
x = 10/2 = 5
x= 5
Answered by
34
Hey user!
Here's your answer!!
● It's in the pic.
● Refer to it.
● Ask if any doubts occur.
Hope it helps!
Follow me!!
Here's your answer!!
● It's in the pic.
● Refer to it.
● Ask if any doubts occur.
Hope it helps!
Follow me!!
Attachments:
antaldisha1212:
Thank you. : ) Your answer is correct. But I have a doubt. We equal the powers only when bases are same. But here..............................
No, we add r subtract the powers when bases r equal. But here we have a variable x n we need to find its value. We already r given with RHS=LHS. So it is possible.
Similar questions