GCSE Maths Practice: substitution

Question 1 of 10

This question practices the difference of squares and division of algebraic expressions.

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\( \text{What is the value of } \frac{x^2 - y^2}{xy} \text{ when } x = 6,\ y = 2? \)

Choose one option:

Compute numerator and denominator separately before dividing. Simplify fractions where possible.

You can factor x^2 - y^2 as (x - y)(x + y) or directly substitute and simplify. Always check the denominator.