GCSE Maths Practice: substitution

Question 9 of 10

Practice evaluating a negative number squared by substituting a value into an expression.

\( \text{Evaluate } x^2 \text{ when } x=-3 \)

Choose one option:

Always remember that squaring a negative number results in a positive value.

When squaring a negative number, the result is positive. This illustrates how substitution works for powers.