Question

(9) if x ^ 2 + 1/(25x ^ 2) = 8 3/5 then find x^ 3 + 1 125 x 8​

Answer 1

Step-by-step explanation:

If 5

2x−1

=1/(125)

x−3

, find x.

Let us simplify the given expression,

5

2x−1

=1/(5

3

)

x−3

5

2x−1

=1/5

3x−9

5

2x−1

=5

3x+9

Now by comparing the powers, we get

2x−1=−3x+9

2x+3x=9+1

6x=10

x=10/5

=2

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