Question

Solve for x 3x^ - 4 = 8

Answer 1

1/8

Explanation:

i added and combined like terms and got 1/8

Answer 2

Answer:
`x` ≈
`\±0.782`

Explanation:

You need to solve for "x" in order to find its value.

First, you need to apply the Negative exponent rule. This is:

`a^(-n)=(1)/(a^n)`

Then:

`3x^(- 4)= 8`

`(3)/(x^4)=8`

Now you can solve for "x":

`3=8x^4`

`(3)/(8)=x^4`

Remember that:

`\±\sqrt[n]{a^n}=\±a`

Then, you get:

`\±\sqrt[4]{(3)/(8)}=x`

`x` ≈
`\±0.782`