Exponents Simplification

Simplify
(3x³y⁵)⁴

• 3x¹²y²⁰

• 81x¹²y²⁰

• 12x¹²y²⁰

• 81x⁷y⁹

• 2a²b⁶
• 1/2a²b⁶
• b⁶/2a²
• 2b⁶/a²

Explain the error in the simplification below:
x³yx^-4z^-2=x^-1yz^-2

• Should have multiplied the x exponents.

• Should have subtracted the x exponents.

• Should have moved the negative exponents to the bottom of a fraction.

• There is no error.

This expression can be written as the following exponent on x.

• x^1/5

• x^-1/5

• x^-5

• x⁵