Someone me
i’ll give brainliest

Step-by-step explanation:

When you have a power then a root like that, you have to divide the power by the root.

So, in this case, you have (x^2y^4) and a 8th root (8√).

So, you take your exponents from (x^2y^4) and divide them by the root (8), to get new powers of 2/8, or 1/4, and 4/8 or 1/2

As I already explained you in other questions, that leaves a fractional exponent that is equivalent to the regular exponent then rooted.

Answer is then:

it's equivalent, so we can say that its equal.

let's call the denominator x and the numerador is 18 less then denominator, x - 18.

multiply

2.x = 5.(x - 18)

2x = 5x - 90

90 = 5x - 2x

90 = 3x

x = 90/3

x = 30

so: