Let’s solve the questions one by one:

Question 9

You are asked to complete the square root equations:

Part a: $\sqrt{\Box} = 18$

To solve, square both sides: $\Box = 18^2 = 324$ Answer: $\Box = 324$.

Part b: $\sqrt{\Box} = 20$

Square both sides: $\Box = 20^2 = 400$ Answer: $\Box = 400$.

Question 10

You are asked to complete the cube root equations:

Part a: $\sqrt[3]{\Box} = 7$

To solve, cube both sides: $\Box = 7^3 = 343$ Answer: $\Box = 343$.

Part b: $\sqrt[3]{\Box} = 9$

Cube both sides: $\Box = 9^3 = 729$ Answer: $\Box = 729$.

Final Answers:

• 9a: $\Box = 324$
• 9b: $\Box = 400$
• 10a: $\Box = 343$
• 10b: $\Box = 729$

Would you like to review any step in more detail?

Related Questions:

1. What is the square root of 144?
2. Solve for $x$ in $x^2 = 625$.
3. What is the cube of 5?
4. Simplify $\sqrt[3]{512}$.
5. Can you express $\sqrt[3]{64}$ in exponential form?

Tip:

To check your square or cube root calculations, always reverse the operation by squaring or cubing the result.