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The image asks to find the value of:

1. \( x^2 \) when \( x = 5 \)
2. \( y^2 \) when \( y = -2 \)
3. \( z^2 \) when \( z = 0.5 \)

Let's solve them:

### a) \( x^2 \) when \( x = 5 \):
\[
x^2 = 5^2 = 25
\]

### b) \( y^2 \) when \( y = -2 \):
\[
y^2 = (-2)^2 = 4
\]

### c) \( z^2 \) when \( z = 0.5 \):
\[
z^2 = (0.5)^2 = 0.25
\]

Thus, the values are:
- \( x^2 = 25 \)
- \( y^2 = 4 \)
- \( z^2 = 0.25 \)

Would you like more details or have any questions?

Here are 5 related questions:
1. What is the value of \( x^3 \) when \( x = 5 \)?
2. What is \( y^3 \) when \( y = -2 \)?
3. How does squaring affect positive vs negative numbers?
4. What is the square root of \( 25 \)?
5. How would the results change if \( z \) were negative?

**Tip:** Squaring a negative number always gives a positive result.

Find the value of: a) x² when x = 5 b) y² when y = -2 c) z² when z = 0.5

Learn how to find the square of numbers such as x² when x = 5, y² when y = -2, and z² when z = 0.5. This guide covers the basic concept of squaring numbers, essential formulas, and properties, making it suitable for students in Grades 6-8.

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