Answer:
Explanation:
You need to get the numbers in the same base.
(7^2)^(x - 1) = 7^1 * 7^1/2
7^2(x - 1) = 7^(1 + 1/2)
Now you can equate the powers since the base is the same
2(x + 1) = 1.5 Remove the brackets
2x + 2 = 1.5 Subtract 2 from both sides
2x = 1.5 - 2
2x = -1/2 Divide by 2
2x/2 = -1/2/2
x = - 1/4
This is not an easy question. I hope the steps help you.