Question

prove that 5^x-3 *3^2x-8=225​

Answer 1

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 – 8 = 2

2x = 2 + 8 = 10

x = 10/2 = 5

x= 5

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