GCSE Maths Practice: substitution

Question 9 of 10

This question practices substitution into expressions with cubes and squares, including negative numbers.

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\( \text{Evaluate } x^3 - y^3 + z^2 \text{ when } x = -5, y = 3, z = 1 \)

Choose one option:

Cube first, then subtract and add terms step by step. Double-check each calculation.

Compute x^3, y^3, and z^2 separately. Combine carefully, paying attention to signs.