Rules for exponents - e-instruction day Feb 17

What 2 rules would you use for this expression:

(10^{7 .} 10²)⁵

• Add the exponents

• Subtract the exponents

• Multiply the exponents

• Divide the exponents

Simplify the expression.
(x⁴ )(x¹²)

• x³
• x⁴⁸
• x¹⁶
• x⁸

 $\frac{\left(4a^2b^3\right)^3}{\left(8a^3b^4\right)^2}$  

•  $\frac{1}{4a^2b^2}$  

•  $\frac{b}{4}$  

•  $b$  

• None of these

Evaluate the expression using the quotient rule.

• x¹³
• x⁵
• x³⁶
• x^-5

• none of these

• x⁴
• x⁸
• x¹²
• x²⁰

• a⁷
• a¹⁰
• a³
• a^-3

Evaluate this expression using the quotient rule.

• 9⁵
• 9⁹
• 1⁵
• 9^-5