Question

Can anyone please help and explain?

Answer 1

Step by step:-
Step one, subtract 8 brom both sides.

Answer 2

from*

Answer 3

\[-\sqrt[3]{4x} = 2\]

Answer 4

Now take cube on both sides.

Answer 5

\[-\sqrt{4x} = 8\]

Answer 6

No. That's an error. See, that sign above 4 is, implies that it's the third root of 4x. Not (4x)^3/2 It's just -(4x)^1/3

Answer 7

So technically, what you get is -4x=8.
You can find the value of x, now.

Answer 8

\[\sqrt[3]{a}\] is actually a^(1/3)

Answer 9

ok just a moment please

Answer 10

so you cancel the cube when you take cube on both sides?

Answer 11

Yes. That's not cube, by the way, that's 1/3 rd exponential power.

Answer 12

Thankyou. so is x=-2?

Answer 13

Yes.

Answer 14

Thank you so much!!!

Answer 15

Glad to help. =)