Question

find x so that full explain pls​

Answer 1

Answer:

Step-by-step explanation:

[ (1/3^5) * (1/3^-7) ]

( 1 / 3^ -7+5)

( 1/ 3^ -2)

= (1^2*1 /3)

Answer 2

x = 3/2

Step-by-step explanation:

[(1/3)^-5+7 = (1/3)^2x-1] {a^m × a^n = a^m+n}

[(1/3)² = (1/3)^2x-1]

Now, because the base are same. So we will only take the powers in the equation,

2 = 2x - 1

2 + 1 = 2x (by transposing)

3 = 2x

3/2 = x

Therefore, the answer will be x = 3/2

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