Exponent Rules

Which expression is equivalent to
x³ / x⁵ ?

• x²
• x⁸
• 2x²
• 1 / x²

Which expression is equivalent to 
a⁻³ ?

• a
• 1 / a³
• 1/a⁻³
• −a³

Which expression is equivalent to 
4⁻² ?

• 1/16
• 16
• 1/4⁻²
• 8

Which expression is equivalent to 
(−2)⁰ ?

• 1
• −2
• 0
• 2

According to exponent rules, when we raise a power to a power we _______ the exponents.

• add

• subtract

• multiply

• divide

Which expression is equivalent to
(5³)⁴ ?

• 5⁷
• 1/5
• 5¹²
• 20³

Which expression is not equivalent to
9⁻¹

• 1/9
• 9⁻⁵ ⋅ 9⁴
• −9
• 9¹²/9¹³

Which expression is equivalent to
2⁵ ⋅ 2⁻⁸

• 2⁵ − 2⁸
• 2⁵ + 2⁸
• 2⁻⁵ ⋅ 2⁸
• 2⁴ / 2⁷

Which expression is equal to 
(4³)⁻⁵

• 1 / (4¹⁰ ⋅ 4⁵)
• −5(4³)
• (4³)(4³)(4³)(4³)(4³)
• 4⁻²

Which expression is equivalent to
7⁸ / 7³ ?

• 7³ / 7⁸
• 1/7⁵
• 49
• 7² ⋅ 7³